Penerbitan Terkini

ah choy er, habibah ahmad, azima abdul manaf.  (2021).  comparative cost benefit analysis of conventional farming and agroecological farming for rice cultivation in bachok, kelantan.  - international journal of environment and development.  181-187. 

habibah ahmad, wee eng fui, riduan supadi, hamzah jusoh, er ah choy, norngainy mohd tawil.  (2021).  kesediaan masyarakat sivil mengadaptasi platform untuk peluang sharing economy: sorotan literatu.  - e- bangi - journal of social sciences and humanities.  109-126. 

hoon suat hoon, nurul fadilah mohd. nawi, er, a.c..  (2021).  sustainability indicators for the tourism sector.  - international journal of management.  528-543. 

er ah choy.  (2021).  re-making of environmental history for the oil palm and palm oil sector in malaysia.  - international journal of management.  578-589. 

azra nuhairi abdul aziz, nur anira alfitri, nurainsah sepeai, nurul fadilah mohd. nawi, er, a.c..  (2021).  kelestarian penanaman kelapa sawit terhadap pensijilan mspo dalam kalangan pekebun kecil sawit di lahad datu, sabah.  - 2nd international conference on business, education, social and technology (icbest 2021).  170-182. 

geraldine k.l. chan, er ah choy, mimi hanida abdul mutalib, zanisah man.  (2021).  conceptualising social capital and human capital for oil palm industry development in malaysia.  - the 12th international malaysian studies conference (msc12).  356-373. 

habibah ahmad, hamzah jusoh, kamisah osman, kadaruddin aiyub, er ah choy, sharina abdul halim, zurinah tahir.  (2021).  tingkah laku pelancong domestik semasa pkpp mendepani pandemik covid-19.  - siri 1: laporan penyelidikan pelancongan domestik dan covid.  1-34. 

azra nuhairi abdul aziz, nur anira alfitri, nurainsah sepeai, nurul fadilah mohd.nawi, er, a.c..  (2021).  kelestarian penanaman kelapa sawit terhadap pensijilan mspo dalam kalangan pekebun kecil sawit di lahad datu, sabah.  - journal of tourism, hospitality, and environment management.  65-78. 

noordeyana tambi, er ah choy, nur hafizah yusoff, azlan abas, ummu liyana halim.  (2021).  well-being challenges of palm oil smallholders community.  - ebangi journal of social sciences and humanities.  262-278. 

siti nurain marzuki, agnes amoi anak sudin, dorathy sebi anak nelson atang, aini atiqah nor arsat, nurul liyana zainal abidin, nurul fadilah mohd. nawi, er, a.c..  (2021).  tarikan pelancongan berasaskan warisan di kuala lumpur.  - e-bangi.  243-261. 

nur hafizah yusoff, er ah choy, noordeyana tambi, azlan abas.  (2021).  a scoping review of wellbeing and quality of life among oil palm smallholders.  - e-bangi journal of social sciences and humanitiies.  1-11. 

er ah choy, sharifah rafida syed abdul rahman, dira shahira begum doulath sharif, nur marina ibrahim, audi aisha mohd nawi, noordeyana tambi, azianura hani shaari, marlyna maros.  (2021).  environmental care strategies by a palm oil millier.  - annals of romanian society for cell biology.  3062-3080. 

fauzunnasirah fazil, er ah choy, noordeyana tambi, susheel kaur dhillon joginder singh.  (2021).  family vacation during covid-19 pandemic in malaysia.  - eproceeding regional seminar youth and community issues series 2/2021.  273-276. 

mohammad fazli sahbuiddin, abdul rahman arif azhari, azan dzuhri mohamed, mohd hasdi muda, er, a.c..  (2021).  kelestarian persekitaran dan ekonomi dalam kalangan pekebun kecil sawit di pulau carey, selangor.  - ebangi.  49-63. 

er ah choy.  (2020).  major challenges facing the palm oil industry in malaysia: the road ahead towards sustainability.  - bengkel pembentangan geran kluster kursi endowmen mpob-ukm.  1-9. 

chan kim ling, er ah choy, zanisah man, mimi hanida abdul mutalib.  (2020).  social capital for human capital creation for oil palm development in malaysia.  - bengkel pembentangan geran kluster kursi endowmen mpob-ukm.  1-17. 

habibah ahmad, hamzah jusoh, er ah choy, musrifah idris.  (2020).  unpacking the experience of the biosphere reserve tourism from the academic tourists perspectives a case of tasik chini.  - journal of tourism, hospitality and environment management.  163-183. 

azima abdul manaf, azlan abas, er ah choy, roslan hakim, helen mu hung ting, kim ling geraldine chan, maslida yusof, mohd sallehuddin abd aziz, muzzneena ahmad mustafa, norasmah othman, norlida hanim mohd salleh, suhana saad, zaimah ramli, suraiya ishak,.  (2020).  akademika jilid 90 (1).  - akademika jurnal sains sosial dan kemanusiaan asia tenggara.  1-208. 

azima, mohd sallehuddin, mohd subakir, maslida, chan kim ling geraldine, muzzneena, norlida hanim, er ah choy, norasmah, suhana saad, zaimah ramli, suraiya ishak, yusmilayati, jamiah manap, junaidi awang, ahmad yunus, et. al.  (2020).  akademika jilid 90 (2).  - akademika: jurnal sains sosial dan kemanusiaan asia tenggara.  1-208. 

azima, suraiya, suhana, maslida, yusmilayati, zaimah, norasmah, muzzneena, erah choy, jamiah, ahmad yunus, et. al.  (2020).  akademika jilid 90 (3).  - akademika: jurnal sains sosial dan kemanusiaan asia tenggara.  1-208. 

azima, azlan,er ah choy, roslan abdul hakim, helen mu hung ting, kim ling geraldine chan, maslida, mohd sallehhudin,muzzneena, norasmah othman,norlida, suhana,et.al.  (2020).  akademika jilid 90 special issue.  - akademika; jurnal sains sosial dan kemanusiaan asia tenggara.  1-208. 

mohd salllehuddin, mohamad subakir, maslida,chan kim, muzzneena,norlida, er ah choy,norasmah, suhana,zaimah, yusmilayati,jamiah,junaidi,ahmad yunus, et. al.  (2020).  akademika jilid 90 (3) isu 2.  - akademika jurnal sains sosial dan kemanusiaan asia tenggara.  1-208. 

azima,sallehuddin,maslida,geraldine,muzzneena,norlida,er ah choy,norasmah,suhana,zaimah,yusmilayati,jamiah,junaidi,ahmad yunus,helen,azlan,andul rahman, subakir, suraiya.  (2020).  akademika jilid 90 (3) special issue.  - akademika: jurnal sains sosial dan kemanusiaan asia tenggara.  1-208. 

habibah ahmad, mohd sufian mohd saifuddin, hamzah jusoh, er ah choy, mohd fuad mat jali.  (2020).  pendekatan koperasi dalam membangunkan inap desa: penerimaan komuniti inap desa (cooperative approach in developing homestay: acceptance from homestay community).  - akademika.  129-145. 

hon suat hoon, er, a.c., nurul fadilah mohd. nawi.  (2020).  analisis faktor petunjuk kelestarian pelancongan.  - journal of tourism, hospitality and environment management.  143-162. 

habibah ahmad, nor syafawani nordin, hamzah jusoh, er ah choy.  (2020).  laporan projek buku:pemetaan aset semula jadi-budaya dan kesannya terhadap penglibatan komuniti dalam pelancongan di geopark langkawi.  - 1-18. 

hawati janor, azhar ahmad, abdul hamid jaafar, mohd tusirin mohd nor, er ah choy, novel lyndon, ahmad parveez hj. gulam kadir, sakinah alias, ajlaa bazilah mohd taufik.  (2020).  sinergi penyelidikan dalam industri sawit: perkongsian pintar mpob-ukm.  - impak- kursi endowmen mpob-ukm.  1. 

marlyna maros, azianura hani shaari dan er ah choy.  (2020).  tidak menarik mahupun lumayan: persepsi belia terhadap sektor minyak di malaysia.  - impak.  17. 

er ah choy, a.s.a. ferdous alam, halima begum.  (2020).  spidergrams sebagai petunjuk bagi amalan kelestarian kilang minyak sawit.  - impak.  18. 

er ah choy & arthur p.j. mol.  (2020).  saling bergantung dan mengukuhkan sifat kelestarian alam sekitar untuk industri minyak sawit.  - impak.  19. 

pjm oosterveer.  (2020).  urustadbir, kelestarian dan globalisasi.  - impak.  20. 

arthur pj mol.  (2020).  pensijilan pasaran, pasaran pensijilan: mengesan kemampanan dalam rantaian nilai makanan global.  - impak.  21. 

natrah natu, er, a.c., rewathi karudan.  (2020).  sustainable tourism indicators from the visitors' perspectives.  - international journal of social science research.  175-187. 

mohamad kazar razali, habibah ahmad, er ah choy, hamzah jusoh.  (2020).  laporan projek buku: interaksi komuniti dalam proses bina-tempat pelancongan di jejak warisan dunia melaka.  - 1-17. 

habibah ahmad, hamzah jusoh, er ah choy, zurinah tahir.  (2020).  managing beach tourism in langkawi geopark: from the international tourists' perspectives.  - international journal of management.  727-737. 

mohamad kazar razali, habibah ahmad, er ah choy, hamzah jusoh.  (2020).  proses bina-tempat pelancongan dan kesan terhadap pelancong di tapak warisan dunia melaka.  - e-simposium kebudayaan indonesia malaysia ke-xvi (2020).  1-10. 

ajlaa bazilah mohd taufik dan er ah choy.  (2020).  serampang dua mata: mpob-ukm @kampung hulu chuchoh.  - impak.  34. 

er, a.c., nur anisah abd manan, norsuriani md saleh, noor fatin azua ab razab, ding chin wei, azhar ahmad, hawati janor.  (2020).  persepsi dan faktor yang mempengaruhi pembelian minyak sawit dalam kalangan pengguna domestik dan antarabangsa.  - ebangi journal of social sciences and humanities.  165-189. 

er ah choy, zurina mohammad, habibah ahmad, che radziah che mohd zain, salmah yaakop, kalaivani k. nadarajah.  (2020).  sustainable and resilient rice farming.  - 4. 

amaluddin bakeri, zuliskandar ramli, er ah choy, azahan awang.  (2020).  rising property price: the effects and the preparations of the malay people in the suburbs.  - the malaysian journal of social administration.  39-59. 

er, a.c., wafa adila, nur fatin aqila mohd fadzilah, egna francis gitom, nur hasyaa marzuki, noordeyana tambi.  (2020).  tahap kepuasan kepenggunaan minyak sawit dalam kalangan pengguna domestik dan pelancong antarabangsa.  - ebangi journal of social sciences and humanities.  190-203. 

rewathi karudan, er ah choy.  (2020).  the strategies towards mspo certification: case of a palm oil miller, east malaysia.  - international journal of management.  740-748. 

natrah natu, er ah choy.  (2020).  sustainable tourism indicators from the visitors' perspectives.  - 2nd kuala lumpur international multi-disciplinary research 2020 (klic 2020).  139-152. 

josephine anak merdu, salbiah samsudin, normaizura maizan, muhammad syazwn naim sazali, er, a.c., habibah ahmad, nurul fadilah mohd nawi.  (2020).  kajian perbandingan bagi penanaman organik dan konvensional di cameron highland, pahang.  - 2nd kuala lumpur international multi-disciplinary research 2020.  82-97. 

che radziah che mohd zain, mohd fairuz md suptian, salmah yaakop, mohd shahrul mohd nadzir, er ah choy.  (2020).  sustainable and resilient rice farming.  - 127. 

er ah choy, wan rizan irwan wan ramli, sharul hisham sulaiman dan mohd noor ramdan mohd faudzi.  (2020).  advokasi pembangunan lestari.  - 10. 

hawati janor, azhar ahmad, er ah choy, novel lyndon, petrus jacobus maria oosterveer, sakinah alias, ajlaa bazilah mohd taufik.  (2020).  ke arah kelestarian ekonomi di dalam pembangunan industri minyak sawit.  - majalah impak ukm.  1-34. 

nurul fadilah mohd. nawi, er ah choy.  (2020).  campus sustainability: a case study in universiti malaysia sabah (ums).  - journal of sustainability science and management.  113-124. 

hon suat hoon, er ah choy, nurul fadilah mohd. nawi.  (2020).  analisis faktor petunjuk kelestarian pelancongan.  - 2nd kuala lumpur international multidisciplinary academic conference (klimac2020).  138-154. 

kiki rizki makiya, habibah ahmad, hamzah jusoh & er ah choi.  (2020).  pengalaman nilai budaya sunda dalam layanan aktiviti di desa wisata cibuntu, jawa barat.  - 1-12. 

nur atiqah kamarus zaman, habibah ahmad, er ah choy, rosniza azni che rose.  (2020).  kepelbagaian acara pelancongan di putrajaya dalam menarik kedatangan pengunjung.  - pogres 2020 postgraduate research seminar.  1-11. 

josephine anak merdu, er, a.c., salbiah samsudin, normaizura maizan, muhammad syazwan naim sazali, habibah ahmad, nurul fadilah mohd. nawi.  (2020).  kajian perbandingan bagi penanaman organik dan konvensional di cameron highlands, pahang.  - journal of social science advanced research.  43-60. 

nur amirah kamarus zaman, habibah ahmad, er ah choy, hamzah jusoh.  (2020).  imej destinasi pelancongan: perbandingan imej sebelum dan selepas kunjungan ke putrajaya.  - pogres 2020 postgraduate research seminar.  1-13. 

mohamad kazar razali, habibah ahmad, er ah choy, hamzah jusoh.  (2020).  matrik bina-tempat pelancongan bagi kelestarian tapak warisan dunia melaka, malaysia berdasarkan pespektif komuniti-pelancong.  - pogres 2020 postgraduate research seminar.  1-4. 

rewathi karudan, sue lin ngan, er, a.c..  (2019).  prioritization of mspo principles in palm oil mills: an analytic hierarchy process approach.  - pipoc 2019 : agriculture, biotechnology & sustainability conference.  166. 

er ah choy.  (2019).  environmental sustainability: a conceptual framework for research in the palm oil sector.  - palm oil industry for a sustainable economy (poidse) seminar & workshop 2019.  8-12. 

nurul fadilah mohd nawi, er ah choy, rewathi karudan, yaakob h. ibrahim, amran arifin.  (2019).  good agricultural practices amongst oil palm smallholders: a case study in sabah.  - religación. revista de ciencias sociales y humanidades.  347-355. 

halima begum, a.s.a. ferdous alam, a.c. er, ahmad bashawir abdul ghani.  (2019).  environmental sustainability practices among palm oil millers.  - clean technologies and environmental policy.  1979-1991. 

wong, m.h., er, a.c..  (2019).  kajian kepustakaan indikator pelancongan warisan.  - journal of tourism, hospitality and environment management.  90-101. 

nur amirah kamarus zaman, habibah ahmad, er ah choy, hamzah jusoh.  (2019).  imej destinasi sebagai penentu kepuasan dan kesetiaan pelancong di putrajaya.  - postgraduate research seminar (pogres 2019) 2019.  1-14. 

kiki rizki makiya, habibah ahmad, hamzah jusoh dan er ah choy.  (2019).  penerapan nilai budaya urang sunda dalam interaksi layanan desa wisata cibuntu, jawa barat.  - postgraduate research seminar (pogres 2019) 2019.  1-16. 

mohamad kazar razali, habibah ahmad, er ah choy dan hamzah jusoh.  (2019).  penglibatan komuniti terhadap bina-tempat pelancongan di tapak warisan dunia bandaraya melaka.  - postgraduate research seminar (pogres 2019) 2019.  1-22. 

hidayatulfathi binti othman;siti balkis bt. budin;er ah choy;mazrura binti sahani;rozita binti hod.  (2019).  sustainable community-based relationship for building community capacity to overcome the dengue problem in hulu langat district, selangor.  -

azima abd.manaf, azlan abas, er ah choy, roslan abdul hakim, helen mu hung ting, kim ling geraldine chan, maslida yusof, mohd sallehuddin abd.aziz, muzzneena ahmad mustafa, norasmah othman, norlida hanim mohd salleh, suhana saad, suzanna mohamed isa.  (2019).  akademika: jilid 89, isu 2.  - akademika: jurnal sains sosial dan kemanusiaan asia tenggara.  1-217. 

azima abd.manaf, azlan abas, er ah choy, roslan abdul hakim, helen mu hung ting, kim ling geraldine chan, maslida yusof, mohd sallehuddin abd.aziz, muzzneena ahmad mustafa, norasmah othman, norlida hanim mohd salleh, suhana saad, suzanna mohamed isa.  (2019).  akademika: jilid 89, isu 1.  - akademika: jurnal sains sosial dan kemanusiaan asia tenggara.  1-208. 

nur atiqah kamarus zaman, habibah ahmad, er ah choy, rosniza azni che rose.  (2019).  penglibatan enduduk setempat dalam pelancongan acara di putrajaya.  - postgraduate research seminar (pogres 2019).  1-19. 

japheth daramola, toriman m. ekhwan, ekundayo joseph adepehin, j. mokhtar, kuok choy lam, ah choy er.  (2019).  seasonal quality variation and environmental risks associated with the consumption of surface water: implication from the landzun stream, bida, nigeria.  - heliyon.  1-11. 

chukwuka m. abazue, er ah choy, novel lyndon.  (2019).  oil palm smallholders and certification: exploring the knowledge level of independent oil palm smallholders to certification.  - journal of bioscience and agriculture research.  1589-1596. 

er ah choy, jumaat adam, khairunnisa rosly, siti norhafizah ahmad tarmidzi, mohd afiq aizat juhari.  (2019).  ekopelancongan dan sosioekonomi bukit fraser-raub, pahang.  - 19. 

marlyna maros, azianura hani shaari, er ah choy.  (2019).  sikap belia dalam industri sawit di malaysia: satu kajian keperluan.  - akademika.  175-189. 

sue lin ngan, bing shen how, sin yong teng, michael angelo b. promentilla, puan yatim, ah choy er, hon loong lam.  (2019).  prioritization of sustainability indicators for promoting the circular economy: the case of developing countries.  - renewable and sustainable energy reviews.  314-331. 

nur amirah kamarus zaman, habibah ahmad, hamzah jusoh, er ah choy, rosniza aznie che rose, nur atiqah kamarus zaman.  (2019).  imej kognitif-afektif-unik pelancongan pusat pentadbiran putrajaya daripada lensa pelancong dan penduduk.  - geografi.  1-34. 

er ah choy, jumaat adam, rosniza aznie che rose, siti norhafizah ahmad tarmidzi, mohd afiq juhari, nurain sahazali, nadiah hanani abdul jalil.  (2019).  ekopelancongan dan sosioekonomi bukit fraser-raub, pahang.  - 19. 

mohammad kazar razali, habibah ahmad, ah-choy er.  (2019).  the analysis of place-making research towards community sustainability in malaysia.  - international journal of business and society.  329-347. 

kian-ghee tiew, noor ezlin ahmad basri, kohei watanabe, shahrom m. zain, ah-choy er, hong deng.  (2019).  higher educational institutions recycling management in malaysia.  - international journal of business and society.  277-285. 

ah-choy er, nurul fadilah mohd. nawi, meng-yong tee, nur illyani ibrahim, nurulain bachok.  (2019).  entrepreneurial recycling initiatives towards campus sustainability.  - international journal of business and society.  247-259. 

habibah ahmad, hamzah jusoh, rokiah omar, mohd ekhwan toriman, nik hairi omar, adi irfan che ani, er ah choy, mohd fuad mat jali, mohd kazar razali.  (2019).  jejak muslim kota ligor : kembara ilmu dan silaturrahim ukm-pondok bantan, nakhon si thammarat, thailand.  - 14. 

chong sheau tsuey, samsudin a. rahim, er ah choy, denise koh choon lian, nasrudin subhi, mohd suhaimi mohamad, fauziah ibrahim, abdul latif ahmad, emma mirza wati mohamad , sabariah mohamed salleh.  (2019).  developing a standard measurement for researching social capital among adolescents' social networks.  - 1-50. 

halima begum, er ah choy, a.s.a. ferdous alam, chamhuri siwar, suraiya ishak.  (2019).  sustainability practices framework of the palm oil milling sub-sector: a literature survey.  - international journal of environment and sustainable development.  387-407. 

azima a.m, er ah choy dan novel lyndon.  (2018).  organizational crisis and the oil palm smallholders institution.  - information: an interdisciplinary journal. 

azima a.m, er ah choy dan novel lyndon.  (2018).  oil palm smallholders in sabah: the institution contrains of innovation.  - information. 

sue lin ngan, micahel angelo b. promentille, puan yatim, hon loong lam, ah choy er.  (2018).  developing sustainability index for malaysian palm oil industry with fuzzy analytic network process.  - chemical engineering transactions. 

er ah choy.  (2018).  academic writing: what should have?.  - technique for writing articles for international journalism accredited. 

suhaila abdul hamid, hoy-yen chan, ah choy er, wong chin yew & kamaruzzaman sopian.  (2018).  renewable energy in developing countries: local development and techno-economic aspects.  - 12. 

nurul fadilah mohd. nawi, er ah choy, rewathi karudan, mohd. hamirul saleh, amran arifin, mohd. hairi jati, claire bili & mohd syafiq safwan madlan.  (2018).  penglibatan pekebun kecil sawit dalam amalan pertanian baik (gap) di kota marudu, sabah.  - persidangan kebangsaan pekebun kecil sawit 2018. 

wong mee hua & er ah choy.  (2018).  kelestarian penanaman kelapa sawit dalam kalangan pekebun kecil di sri aman, malaysia.  - persidangan kebangsaan sarjana muda sains sosial dan kemanusiaan. 

hidayatulfathi binti othman;er ah choy;mazrura binti sahani;rozita binti hod.  (2018).  one health approach in responses and adaptations to emerging infectious diseases due to climate change: a case study of leptospirosis.  -

rospidah bt. ghazali;basri bin abdul talib;er ah choy;mohd adib bin ismail;chamhuri b siwar.  (2018).  transformasi pekebun kecil persendirian sektor kelapa sawit dalam kerangka pembangunan lestari.  -

marlyna maros, azianura hani shaari, er ah choy, sabariah salleh.  (2018).  involving the young generation on palm oil industry in malaysia: a case study.  - disaster resilient cities. 

tariqur rahman bhuiyan, mohammad imam hasan reza, er ah choy, joy jacqueline pereira.  (2018).  improving flood management, prediction and monitoring : case studies in asia.  - 11. 

kiki rizki makiya, habibah ahmad, hamzah jusoh & er ah choy.  (2018).  kesan layanan urang sunda terhadap pengalaman pelancong di desa wisata jawa barat.  - the 7 th international conference on social sciences and humanities. 

sri winarni samsir, habibah ahmad, hamzah jusoh & er ah choy.  (2018).  pengalaman pembelajaran sejarah dan budaya di tapak warisan dunia melaka daripada perspektif pelancong antarabangsa.  - the 7 th international conference on social sciences and humanities. 

amaluddin bakeri, zuliskandar ramli, er ah choy, azahan awang.  (2018).  property ownership of the suburban malays in hulu langat district, selangor.  - international journal of civil engineering and technology. 

zainab roslan, zuliskandar ramli & er ah choy.  (2018).  selected topics on archaeology, history and culture in the malay world.  - 12. 

amaluddin bakeri, zuliskandar ramli, er ah choy, azhan awang.  (2018).  punca lonjakan harga hartanah di daerah hulu langat, selangor.  - the malaysian journal of social administration. 

zainab roslan , zuliskandar ramli , er ah choy , ali yusri and zaini rusli.  (2018).  tourist attractions in the historic royal heritage, jugra, selangor: its potential, opportunities and impact.  - the social sciences.  427-433. 

tariqur rahman bhuiyan, mohammad imam hasan reza, er ah choy, joy jacqueline pereira.  (2018).  direct impact of flash floods in kuala lumpur city: secondary data-based analysis.  - asm science journal. 

n.f.m. nawi & er ah choy.  (2018).  the residents of university malaysia sabah (ums) level of understanding and practices towards a sustainable campus.  - journal of fundamental and applied sciences. 

er ah choy & nur helwa ruslan.  (2018).  determinants of competitive advantage in the tourism sector of langkawi island, kedah.  - journal of tourism, hospitality & culinary arts. 

a. albanya & a.c. er.  (2018).  social sustainability of oil palm plantations among smallholders in lahad datu, sabah.  - journal of fundamental and applied sciences. 

er, a.c., nur hazirah zuhaidi & nurul fadilah mohd. nawi.  (2018).  solid waste segregation initiatives: practices amongst students in the national university of malaysia (ukm).  - 5th regional conference on campus sustainability 2018. 

er ah choy, habibah ahmad, auni aisha mohd nawi & nor asmida maas.  (2018).  homestay banghuris.  - 1-41. 

er. a.c., nur hazirah zuhaidi & nurul fadilah mohd. nawi.  (2018).  solid waste segregation initiatives: practices amongst students in the national university of malaysia (ukm).  - 5th regional conference on campus sustainability 2018. 

er, a.c., nurul fadilah mohd. nawi, rewathi karudan & muhammad hamirul salleh.  (2018).  initiatives by communities towards campus sustainability.  - 5th regional conference on campus sustainability 2018. 

innocent a. jereme, chamhuri siwar, rawshan ara begum, basri abdul talib & er ah choy.  (2018).  analysis of household food waste reduction towards sustainable food waste management in malaysia.  - journal of solid waste technology and management. 

halima begum, chamhuri siwar, a.s.a ferdous alam, er ah choy, suraiya ishak & lubna alam.  (2018).  enhancing sustainability amongst oil palm smallholders in malaysia.  - international journal of agricultural resources, governance and ecology. 

er, a.c., rewathi karudan, b.t. seri tanjung baharudin, ismail halim, mohd sufian mohd saifuddin, nuwairah khalid, saidatul akma aqila rusli & zarina haron.  (2018).  diversification of economic activities by oil palm smallholders: a case study of kampung bukit bulat, melaka.  - the 9th international conference on language, innovation, culture & education (iclice). 

azima a.m, ah choy er, novel lyndon,vivien w.c.yew.  (2018).  mendepani kekangan inovasi dan teknologi dalam kalangan pekebun kecil sawit di sabah.  - geografia malaysian journal of society and space.  56-67. 

habibah ahmad, ahmad nadzri ismail, hamzah jusoh, mohd ekhwan toriman, mastura mahmud, kadaruddin aiyub, shamsubaridah ramlee, er ah choy, norgainy mohd tawil, azlan bin abas, aryma johari, maisarah mohd rabu.  (2018).  program kolaborasi sungai-pantai-pulau angkat ukm-komuniti port dickson.  -

nurul fadilah mohd. nawi & er ah choy.  (2018).  campus sustainability: a case study in universiti malaysia sabah (ums).  - journal of sustainability science and management. 

marlyna maros, azianura hani shaari, nor fariza mohd nor, siti balqis jaafar, er ah choy.  (2018).  exploring youths' attitude on palm oil industry in malaysia.  - international journal of economic research. 

er, a.c., rewathi karudan, b.t. seri tanjung baharudin, ismail halim, mohd sufian mohd saifuddin, nuwairah khalid, saidatul akma aqila rusli & zarina haron.  (2018).  diversification of economic activities by oil palm smallholders : a case study of kampung bukit bulat, melaka.  - the 9th international conference on language, innovation, culture & education (iclice) 2018. 

nurul fadilah mohd. nawi, er ah choy, rewathi karudan, mohd. hamirul saleh, amran arifin, mohd. hairi jati, clare bili & mohd syafiq safwan madlan.  (2018).  penglibatan pekebun kecil sawit dalam amalan pertanian baik (gap) di kota marudu, sabah.  - prosiding persidangan kebangsaan pekebun kecil sawit 2018. 

er, a.c., nur hazirah zuhaidi & nurul fadilah mohd. nawi.  (2018).  solid waste segregation initiatives: practices amongst students in the national university of malaysia (ukm).  - 5th regional conference on campus sustainability 2018. 

mohammad imam hasan reza, er ah choy & joy jacqueline pereira.  (2018).  living with floods in a mobile southeast asia : a political ecology of vulnerability, migration and environmental change.  - 21. 

er, a.c., nurul fadilah mohd. nawi, rewathi karudan & muhammad hamirul salleh.  (2018).  initiatives by communities towards campus sustainability.  - 5th regional conference on campus sustainability 2018. 

wong mee hua & er ah choy.  (2018).  kelestarian penanaman kelapa sawit dalam kalangan pekebun kecil di sri aman, malaysia.  - persidangan kebangsaan sarjana muda sains sosial dan kemanusiaan. 

azima abdul manaf, er ah choy, novel lyndon.  (2018).  pertanian dan komuniti luar bandar.  - 14. 

er, a.c., nurul fadilah mohd. nawi, rewathi karudan & muhammad hamirul salleh.  (2018).  initiatives communities towards campus sustainability.  - 5th regional conference on campus sustainability 2018. 

nurul fadilah mohd. nawi, er ah choy, rewathi karudan, muhammad hamirul saleh.  (2018).  oil palm smallholders practicing good agriculture practices (gap) in kota marudu, sabah.  - 2nd international conference on humanities and social sciences 2018 (ichss 2018). 

nurul fadilah mohd. nawi & er, a.c..  (2017).  campus sustainability: case study in universiti malaysia sabah (ums).  - global tourism conference 2017. 

er ah choy & nur helwa ruslan.  (2017).  determinants of competitive advantage in the tourism sector of langkawi island (pulau langkawi), kedah.  - global tourism conference 2017. 

m.s. mia, r.a. begum, a.c., er. & j.j. pereira.  (2017).  the burden of dengue illness in seremban district, malaysia: economic cost and dalys lost.  - 14th international conference on urban health. 

mohd hafiyyan mahmud, khai ern lee, ah choy er, sharina abdul halim, mazlin mokhtar.  (2017).  revitalization of urban stream through integrated storm water management: a conceptual framework for structural and non-structural approaches.  - the 6th international conference on social sciences and humanities 2017.  22. 

tariqur rahman bhuiyan, mohammad imam hasan reza, er ah choy and joy jacqueline pereira.  (2017).  direct impact of flash floods in kuala lumpur: empirical evidence based analysis.  - seadpri newsletter.  3. 

md shahin mia, er ah choy & joy jacqueline pereira.  (2017).  identifying the sources of dengue infection and prevention practices at household level in seremban district, malaysia.  - journal of environmental science and technology.  238-244. 

md shin mia, er ah choy & joy jacqueline pereira.  (2017).  illness characteristics and treatment seeking behavior of dengue patients: a study in seremban district, malaysia.  - research of applied sciences.  90-96. 

er ah choy.  (2017).  pembangunan keupayaan belia dalam sektor ekopelancongan di mukim ulu dong, raub, pahang.  - impak jendela negeri @ ukm.  61. 

nur hazirah zuhaidi & er ah choy.  (2017).  penglibatan pelajar dalam amalan pengasingan sisa pepejal di universiti kebangsaan malaysia.  - persidangan kebangsaan sarjana muda 2017. 

wan nurashiqin wan mohamad, rozmel abdul latiff, azizah ya`acob, zarina othman, anizan isahak, rahmah elfithri, mohd ekhwan torima, er ah choy.  (2017).  mapping of water information hierarchy for community empowerment.  - the 6th international conference on social sciences and humanities 4-6 april 2017, malaysia. 

habibah ahmad, hamzah jusoh, aryma johari, kadarudidin aiyub, noraza ahmad zabidi, mohd ekhwan toriman, mohd fuad mat jali,er ah choy, nurul fadhliah mohddin.  (2017).  family-friendly beach tourism development in langkawi: what domestic tourists want.  - skim 2017: the 15thinternational conference on simposium kebudayaan indonesia-malaysia 2017. 

puan yatim, ngan sue lin, hon loong lam & er ah choy.  (2017).  overview of the key risks in the pioneering stage of the malaysian biomass industry.  - clean technologies and environmental policy. 

er ah choy & a. b. albanya.  (2017).  economic sustainability of palm oil plantations among smallholdersin lahad datu, sabah.  - journal of fundamental and applied sciences.  76-86. 

bala subramaniam subramaniam, sivapalan selvadurai, er ah choy, parthiban siwayanan.  (2017).  greening practices among iso 14001 certified manufacturing small and medium enterprises (smes) in malaysia.  - proceedings icosh-ukm 2017- the 6th international conference on social sciences and humanities. regionalism and community building in asean: perspectives from social sciences and humanities.  1157-1167. 

a. habibah, j. hamzah, a. c. er, a. buang, s. selvadurai & i. mushrifah.  (2017).  current research in tourism industry.  - 12. 

er. a.c., nurul fadilah mohd. nawi, siti hajar ibrahim, siti aisyah nordin & siti haizani mat delin.  (2017).  sustainable campus: advocacy implementation practices and perceptions of staff and students of ukm.  - international journal of management and applied science. 

mazrura sahani, rozita hod, hidayatulfathi othman, er ah choy, zainudin mohd ali.  (2017).  menghapus denggi dan leptospirosis melalui gandingan strategik ukm dan jabatan kesihatan negeri sembilan..  - impak- jendela negeri @ ukm.  59-60. 

tariqur rahman bhuiyan, mohammad imam hasan reza, er ah choy & joy jacqueline pereira.  (2017).  small scale multi-hazard loss and damage assessment in kuala lumpur city: the fact and challenges.  - international conference on sustainable cities, communities and partnerships for sustainable development goals. 

er ah choy, rewathi karudan & nurul fadilah mohd. nawi.  (2017).  kajian ulasan kerangka konseptual bagi penyelidikan kelestarian kampus.  - konvensyen kampus lestari 2017. 

mohamad kazar razali, habibah ahmad, er ah choy & hamzah jusoh.  (2017).  faktor-faktor penyumbang bina-tempat destinasi pelancongan di malaysia.  - proceeding 1st international social, environmental and developmental sustainability research centre (seeds) conference.  282-297. 

zainab roslan, zuliskandar ramli & er ah choy.  (2017).  heritage evaluation by local community in jugra, kuala langat, selangor using cross tabulation analysis and structural equation modelling (sem).  - prosiding seminar antarabangsa ke-6 arkeologi, sejarah dan budaya di alam melayu.  239-260. 

amaluddin bakeri, zuliskandar ramli, er ah choy & azahan awang.  (2017).  rebakan bandar dan kenaikan harga hartanah: kajian awal impak terhadap masyarakat melayu pinggir bandar di hulu langat selangor.  - prosiding seminar antarabangsa ke-6 arkeologi, sejarah dan budaya di alam melayu.  319-340. 

zainab roslan, zuliskandar ramli, chong shin, er ah choy and muhammad rizal razman.  (2017).  local community perception on the importance of cultural-natural heritage protection and conservation: case study in jugra, kuala langat, selangor, malaysia.  - journal of food, agriculture and environment.  107-110. 

zainab roslan, zuliskandar ramli, mohd syukri yeoh abdullah, er ah choy, muhammad rizal razman.  (2017).  community valuation through their willingness to pay for heritage tourism and sustainable development in jugra selangor, malaysia.  - journal of food, agriculture & environment.  116-120. 

amaluddin bakeri, zuliskandar ramli, er ah choy & azhan awang.  (2017).  isu kenaikan harga rumah di kawasan pinggir bandar: satu tinjauan di mukim semenyih, daerah hulu langat, selangor.  - asian journal of environment, history and heritage. 

er ah choy.  (2017).  the social sustainability dynamics of oil palm smallholders.  - mpob international palm oil congress & exhibition-pipoc 2017. 

k.g. tiew, n.e.a. basri, s.m. zain, a.c. er.  (2017).  higher educational institutions` waste recycling initiatives in malaysia.  - waste management.  1-3. 

kian-ghee tiew, noor ezlin ahmad basri & er a.c..  (2017).  guideline of green tourist culture in asean world heritage sites.  - the 4th annual student conference on arts, humanities, and social sciences. 

t. kian-ghee, a.c. er.  (2017).  malaysian government solid waste recycling management initiatives.  - waste management.  1-2. 

hawati janor, azhar ahmad, novel lyndon & er ah choy.  (2017).  sustainable palm economy, banking, corporate governance and social business.  - impact advancing knowledge and technology: towards national transformation 2050 (tn50). 

azima abdul manaf, er ah choy, novel lyndon & vivien w.c.yew.  (2017).  pekebun kecil sawit:mendepani kekangan teknologi dan inovasi.  - 1st seeds 2017 international conference. 

er ah choy, rewathi karudan & nurul fadilah mohd. nawi.  (2017).  campus sustainability: correlation analaysis between knowledge and sustainable practices amongst student.  - the 7th international conference on language, innovation, culture & education (iclice) 2017. 

hoyyen chan, stephen berry, charles ling, luigi cirocoo, jayant keskar & ah choy er.  (2017).  sustainable campus a model for sustainability transformation.  - the 6th international conference on social sciences and humanities. 

hamzah jusoh, habibah ahmad & er ah choy.  (2017).  indeks progres sosial pekebun kecil kelapa sawit mpob di kuala langat.  - environmental studies due. 

hamzah jusoh, habibah ahmad & er ah choy.  (2017).  indeks progres sosial pekebun kecil kelapa sawit bebas di kuala selangor.  -

nurul fadilah mohd. nawi & er ah choy.  (2017).  campus sustainability: case study in universiti malaysia sabah (ums).  - global tourism conference. 

habibah ahmad, ahmad nadzri ismail (pengerusi homestay pachitan). hamzah jusoh, mohd ekhwan toriman, mastura mahmud, kadaruddin aiyub, shamsubaridah ramli, norngainy mohd tawil, azlan abas, er ah choy.  (2017).  program pembangunan pantai angkat komuniti homestay pachitan - ukm..  - 1-7. 

er ah choy & nur helwa ruslan.  (2017).  determinants of competitive advantage in the tourism sector of langkawi island (pulau langkawi), kedah.  - global tourism conference. 

er, a.c. & alnid albanya.  (2017).  economic sustainability of palm oil plantations among the smallholders in lahad datu, sabah.  - 3rd international conference on the life sciences and sustainability (iclss 2017). 

er, a.c., nur farahain yusri, muhammad nasruddin rusu, nur amrina khusairi, fahruddin mustafal bakri & nurul fadilah mohd. nawi.  (2017).  sustainable campus: forest educational awareness as ecotourism among students.  - 8th international conference on language, innovation, culture & education (iclice) 2017. 

er ah choy, norazilah amir basan, roshafida hussin, lee hou zei, azrul abdul wahab, firal liyana mustapa, seri zatun akhmam fahm, ameer faris ameer sharifuddin, mohammad saufi abu bakar, nurul fadilah mohd. nawi.  (2017).  inisiatif kelestarian kampus: tahap pengetahuan, kesedaran dan amalan lestari di kalangan kakitangan dan pelajar di universiti kebangsaan malaysia.  - journal of global business and social entrepreneurship. 

er ah choy.  (2017).  pemerkasaan komuniti melalui pembangunan ekopelancongan.  - program rampai penyelidik siri 4 b40 fssk & fep, ukm. 

sabariah mohamed salleh, nazra aliff nazri, emma mohamad, er ah choy, marlyna maros & pramela krish.  (2017).  setting the agenda - the framing of palm oil issues in malaysia`s media.  - pipoc2017. 

m.s. mia, r.a. begum, a.c. er & j.j. pereira.  (2017).  the burden of dengue illness in seremban district, malaysia: economic cost and dalys lost.  - 14th international conference on urban health. 

mohamad kazar razali, habibah ahmad, hamzah jusoh, er ah choy.  (2017).  place-making dalam agenda pembangunan pelancongan.  - geografia: malaysian journal of society and space.  38-50. 

er ah choy, joy j. pereira, arpah abu bakar & s.v.r.k prabhaakar.  (2017).  stakeholders` perspectives and policy suggestions for insurance in malaysia.  - malaysia-window-to-cambri. 

arpah abu bakar, s.v.r.k, er ah choy & joy j pereira.  (2017).  cost and benefits of flood insurances for communities in malaysia.  - malaysia-window-to-cambri. 

bala subramaniam subramaniam, rashila ramlia, sivapalan selvadurai, er ah choy, parthiban siwayanan.  (2017).  greening practices among iso 14001 certified manufacturing small and medium entreprises (smes) in malaysia.  - the 6th international conference on social science and humanities.  52. 

rahmah elfithri, mazlin bin mokhtar, shaharuddin mohamad ismail, sohif bin mat, noor ezlin ahmad basri, shahrom md zain, nik mohd noor faizul md saad, er ah choy.  (2017).  a decade of sustainable campus programme in universiti kebangsaan malaysia: 2007-2017.  - the 6th international conference on social sciences and humanities.  37. 

kian-ghee tiew, er, a.c., noor ezlin ahmad basri.  (2017).  sustainable campus development: knowledge amongst students.  - the 6th international conference on social sciences and humanities (icosh-ukm2017).  22. 

habibah ahmad, hamzah jusoh, aryma johari, kadaruddin aiyub, hazita azman, mohd ekhwan toriman, mastura mahmud, er ah choy, mohd azlan abdullah & ruhaiza abu bakar.  (2017).  amalan pelancongan pantai dalam kalangan pengunjung keluarga b40 di pantai chenang, pulau langkawi.  - poster rampai penyelidik b40.  1. 

hoy-yen chan, stephen berry, charles ling, luiqi cirocco, jayant kaskar, er ah choy.  (2017).  sustainable campus: a model for sustainability transformation.  - the 6th international conference on social sciences and humanities (icosh-ukm 2017).  22. 

norzalina zainuddin, chamhuri siwar, er ah choy, norshamliza chamhuri.  (2017).  household`s energy efficiency behavior: the role of knowledge, attitude and social influences.  - science international journal. 

denise koh, ah choy er, juriah mustafa, mohamad safirul azwen mahmud, sheau tsuey chong.  (2017).  campus walkability and the walking behavior of students living in the campus.  - the 6th international conference on social sciences and humanities.  22. 

halima begum, er a. c., chamhuri siwar, a. s. a. ferdous alam, surayia ishak.  (2017).  factors affecting oil palm smallholders environmental sustainability.  - tema penyelidikan: kelapa sawit. 

halima begum, er a c, chamhuri siwar, a. s. a. ferdous alam & suraiya ishak.  (2017).  sustainability practices of palm oil milling sector.  - tema penyelidikan: kelapa sawit. 

er ah choy, tee meng yong, nur iilyani ibrahim, nurulain bachok, azirol hashim azmi, siti suhaila radenan, ahzairin ahmad, mohd sabri redzuan & nurul fadilah mohd nawi.  (2017).  empowerment in campus sustainability.  - 4th regional conference on campus sustainability 2017. 

er ah choy norazilah amir basan roshafida hussin lee hou zei azrul abdul wahab firal liyana mustaapa seri zatun akhmam fahmi ameer faris ameer shariffudin mohammad saufi abu bakar nurul fadilah mohd nawi.  (2017).  inisiatif kelestarian kamous: tahap pengetahuan, kesedaran dan amalan lestari di kalangan kakitangan dan pelajar di universiti kebangsaan malaysia.  - proceeding of international conference on humanities language culture and business.  243-251. 

er, a. c asmaa binti mohamad salleh ath thur mart luthfi erna yanti binti baharum noraine bt nordin nurul izza binti abdul rahim siti khairati binti zakaria siti nor amirah bt ab. aziz siti nur amira binti khoro a. s. a. fe.  (2017).  sustainable campus initiatives implemented by higher education provider: practices amongst students.  - transactions on science and technology.  55-61. 

natrah binti natu & er ah choy.  (2017).  pencapaian pembangunan pelancongan lestari di taman neagar bako, sarawak.  - persidangan kebangsaan sarjana muda (pekasam2017). 

norzalina zainudin, chamhuri siwar, er ah choy and norshamliza chamhuri.  (2016).  low-hanging fruits: impact of socio-economic and behavioural characteristics on consumers willingness to pay.  - malaysian journal of consumer and family economics.  115-126. 

tariqur rahman bhuiyan, mohammad imam hasan reza, er ah choy and joy jacqueline pereira.  (2016).  measuring loss and damage, approaches and challenges.  - buletin seadpri. 

halima begum, chamhuri siwar , a.c. er , a. s. a. ferdous alam.  (2016).  environmentally friendly practices of oil palm cultivators.  - international journal of advanced and applied sciences.  15-19. 

norzalina zainuddin, chamhuri siwar, er ah choy, norshamliza chamhuri,.  (2016).  validation of theory of planned behaviour (tbp) in explaining malaysian purchase intention towards green innovation projects..  - proc of the australian- middle east conference on business and social science 2016.  583-592. 

a.s.a. ferdous alam, a.c. er, halima begum, chamhuri siwar.  (2016).  smallholders the prominent contributor towards sustainable oil palm sector.  - international journal of advanced and applied sciences.  20-24. 

rozita hod, mazrura sahani, hidayatulfathi othman, zainudin ma3, er ah choy.  (2016).  a qualitative study on utilising eco-bio-social (ebs) approach towards sustainable dengue control & management.  - the 4th international one health congress and 6th biennial congress of the international association for ecology and health. 

azwa zawana binti azlin, er a.c, naquiah binti abd rahman, a.s.a. ferdous alam.  (2016).  consumers` roles and practices towards sustainable ukm campus.  - international journal of advanced and applied sciences.  30-34. 

halima begum, chamhuri siwar, a. c. er , a.s.a. ferdous alam.  (2016).  environmentally friendly practices of oil palm cultivators.  - ipn-iwnest 2016 penang conferences. 

zainab roslan, zuliskandar ramli, er ah choy.  (2016).  potensi pembangunan pelancongan berasaskan warisan di bandar lama diraja jugra, selangor: satu analisis swot.  - seminar antarabangsa ke-5 arkeologi, sejarah, budaya dan bahasa di alam melayu nusantara / makassar.  554-562. 

kian-ghee tiew, noor ezlin ahmad basri & er, a.c..  (2016).  zero waste solution: solid waste management in nepal.  - the 3rd international scientific conference on material cycles and waste management 2016.. 

mazrura sahani, md firoz khan, wan rozita wan mahiyuddin, mohd talib latif, chris fook sheng ng, mohd famey yussoff, amir afiq abdullah, er ah choy, norhayati mohd tahir..  (2016).  hazardous air pollutants : case studies from asia.  - 18. 

a. s. a. ferdous alam, a. c. er, halima begum, chamhuri siwar.  (2016).  smalholders the prominent contributor in oil palm sector for sustainability.  - ipn-iwnest 2016 penang conferences. 

azwa zawana binti azlin, er a. c, naquiah binti abd rahman, a.s. a.ferdous alam.  (2016).  practices and roles of consumers in achieving a sustainable university campus.  - ipn-iwnest 2016 penang conferences. 

abu hanifa md noman, md aslam mia, hasanul banna, mod. sohel rana, a.s.a. ferdous alam, chan soke gee, , che ruhana isa, a.c. er.  (2016).  city profile: naranyanganj, bangladesh.  - cities.  8-19. 

mohammad masukujjaman, chamhuri siwar, a. s. a. ferdous alam, and ahmad bashawir and a. c. er.  (2016).  economy-environment nexus for developments: is bangladesh on the right track?.  - international journal of advanced and applied sciences.  25-29. 

md shahin mia, rawshan ara begum, a.c. er and joy jacqueline pereira.  (2016).  financial burden of dengue on household: an empirical study in seremban district,malaysia.  - research journal of applied science.  772-775. 

tariqur rahman bhuiyan, mohammad imam hasan reza, er ah choy, joy jacqueline pereira.  (2016).  a long term trend and change analysis of urban exposure to flood: a case study of kuala lumpur.  - conference on flood catastrophes in a changing environment. 

azima a.m er ah choy, vivien w.c yew, novel lyndon dan shakir alid.  (2016).  how land owneship contribute to the smallholder productivity.  - international journal of economic perspective.  1-16. 

nur atiqah kamarus zaman, habibah ahmad, er ah choy, rosniza azni che rose & nur amirah kamarus zaman.  (2016).  analisis karakteristik dan corak kunjungan penduduk putrajaya terhadap pelancongan acara.  - social sciences postgraduate international seminar (sspis) 2016.  578-585. 

azima a.m, er ah choy, vivien w.c yew, novel lydon and shakir alid.  (2016).  landownership issue and its implication on the productivity of smallholding planters.  - international journal of economic perspective.  1-14. 

zurina ahmad saidi dan er ah choy.  (2016).  penggunaan bekas makanan mesra alam di malaysia: kajian awal pengetahuan dan kesanggupan pelajar universiti kebangsaan malaysia.  - geografia online: malaysian journal of space and society.  113-126. 

kiki rizki makiya, habibah ahmad, hamzah jusoh, er ah choy.  (2016).  memperaga cirian urang sunda dalam pelayanan homestay.  - geografia-malaysian journal of space and society.  120-140. 

chamhuri siwar, norzalina zainudin, er ah choy, norshamliza chamhuri.  (2016).  modelling the consumer`s acceptance on energy efficient products : mediating role of attitude.  - the social sciences.  5017-5022. 

chamhuri siwar; norzalina zainudin; er ah choy; norshamliza chamhuri.  (2016).  modelling the consumers acceptance on energy efficient products: mediating role of attitude.  - the social sciences.  5017-5022. 

menangani wabak denggi di malaysia: satu tinjauan kaedah rawatan dan pencegahan.  (2016).  menangani wabak denggi di malaysia: satu tinjauan kaedah rawatan dan pencegahan.  - geografia online: malaysian journal of society and space.  56-68. 

norazlin mohd nor, er ah choy.  (2016).  analisis tren bilangan insiden hotspot denggi dengan penubuhan combi di malaysia: kajian di daerah seremban, negeri sembilan.  - geografia online: malaysian journal of society and space.  29-39. 

halima begum, chamhuri siwar, er ah choy, a.s.a ferdous alam & suraiya ishak.  (2016).  sustainability of oil palm settler`s.  - international symposium on sustaainable development and management. 

halima begum, chamhuri siwar, er ah choy, a.s.a ferdous alam & suraiya ishak.  (2016).  suistainability of oil palm settler`s.  - international symposium on sustainable development and management. 

sri winarni samsir, habibah ahmad, er ah choy, hamzah jusoh, mohd fuad mat jali.  (2016).  meneroka edupelancongan di melaka bandaraya warisan dunia berasaskan pengalaman pelancong domestik.  - geografia online: malaysia journal of society and space.  156-167. 

kiki rizki makiya, habibah ahmad, hamzah jusoh, er ah choy.  (2016).  kepuasan pelancong terhadap layanan selamat datang ke homestay urang sunda, jawa barat.  - e-bangi: journal of social sciences and humanities.  37-48. 

nur identee binti abdul halim, er ah choy.  (2016).  hubungkait peranan pihak kerajaan dan pihak masyarakat : pembangunan ekopelancongan di pulau langkawi, kedah.  - e-bangi: journal of social sciences and humanities.  22-44. 

er a.c., asmaa bte mohamad salleh, ath thur mart luthfi, erna yanti binti baharum, noraine bt. nordin, nurul izza binti abdul rahim, siti khairati binti zakaria, siti nor amirah bt. ab. aziz and siti.  (2016).  sustainabile campus initiatives implemented by higher education provider: practices amongst students.  - iicbe international conference proceeding: international conference on advances in science, engineering, technology and waste management (asetwm-16).  6-9. 

noor suleeyia sulaiman, er, a.c,.  (2016).  pengawalan dan pencegahan denggi di malaysia: satu tinjauan terhadap penglibatan kerajaan malaysia.  - ebangi: journal of social sciences and humanities.  125-141. 

er a.c., rewathi karudan.  (2016).  promoting campus sustainability: a conceptual framework for the assessment of campus sustainability.  - ebangi: journal of social sciences and humanities.  36-49. 

md shahin mia, rawshan ara begum, ac er, joy jacqueline pereira.  (2016).  assessing the cost burden of dengue infection to households in seremban, malaysia.  - southeast asian journal tropical medicine and public health.  1167-1176. 

nur amirah kamarus zaman, habibah ahmad, hamzah jusoh, er ah choy & nur atiqah kamarus zaman.  (2016).  analisis profil dan pola kunjungan pelancong pusat pentadbiran putrajaya.  - social sciences postgraduate international seminar (sspis) 2016.  835-841. 

alam, a. s. a. ferdous; reza, mohammad imam hasan; begum, halima; er, a. c.; pereira, joy jacqueline.  (2015).  promoting community for disaster risk reduction.  - advanced science letters.  1700-1703. 

halima begum, er a c, a.s.a. ferdous alam, chamhuri siwar & suraiya ishak.  (2015).  economic sustainability of oil palm cultivation: smallholder perspective.  - 5th international seminar of regional network on poverty eradication (renper).  240-252. 

zainab binti roslan, zuliskandar ramli & er ah choy.  (2015).  konseptualisasi pelancongan semiotik dalam pembangunan pelancongan warisan: kajian kes di jugra, selangor.  - prosiding seminar antarabangsa ke-4 arkeologi, sejarah dan budaya di alam melayu.  535-542. 

zainab roslan, zuliskandar ramli & er ah choy.  (2015).  pemerhatian awal: persepsi komuniti tempatan terhadap potensi pembangunan pelancongan warisan di jugra, selangor.  - prosiding seminar antarabangsa ke-8 ekologi, habitat manusia dan perubahan persekitaran : ukm bangi.  261-271. 

halima begum, er ah choy, ferdous alum, chamhuri siwar & suraiya lshak.  (2015).  oil palm cultivation and environmental sustainability.  - civilisation, hopes and discontents: insights from the social sciences and humanities, ukm. 

md. shahin mia, er ah choy. svrk prabakhar, joy jacqueline pereira.  (2015).  disaster risks and insurance in the agriculture sector in asia: a review.  - journal of food, agriculture & environment.  245-249. 

a. s. a. ferdous alum, er ah choy & halima begum.  (2015).  the factors towards tourism development in melaka.  - civilisation, hopes and discontents: insights from the social sciences and humanities, ukm. 

er, a.c., sherly simon.  (2015).  marketing mix of ecotourism product in kuching, sarawak, malaysia.  - mediterranean journal of social sciences.  39-47. 

n. lyndon, a. buang, s. selvadurai, a. habibah, a. c. er., j. hamzah, m. j. mohd fuad & h. mohd yusof.  (2015).  from environmental vulnerability to resilience the malaysian experience.  - Chapter 4:83-110. 

n. lyndon, a. buang, s. selvadurai, h. mohd yusof, a. habibah, a. c. er, j. hamzah, m. j. mohd. fuad, m. e. toriman & i. yahaya.  (2015).  from environmental vulnerability to resilience the malaysian experience.  - Chapter 3: 63-85. 

hamzah jusoh, habibah ahmad, amriah buang, er ah choy, nor ghani md nor.  (2015).  experience economy and the beach tourists perspectives: a case of cenang beach, langkawi, malaysia.  - tourism & travel studies conference proceedings.  80-97. 

habibah ahmad, mushrifah idris, hamzah jusoh, amriah buang, er ah choy.  (2015).  searching for the experiences of the biosphere reserve tourism: the academic tourists perspectives.  - tourism and travel studies conference proceeding.  98-116. 

mohd syukri zainuddin, lee yook heng, nurul afsar, mohammad iman hasan reza, er ah choy, noraini fakhira abdullah, pauzi abdullah, rahmah elfithri, mohamad raihan taha.  (2015).  integrated approach for aiding decision making process for better flood disaster risk management: a case of pahang river basin.  - prosiding seminar bencana alam 2015.  84. 

m. j. mohd fuad, a. buang, a. b. junaidi, a. habibah, j. hamzah, m. mahmud, a. c. er, m. e. toriman, n. lyndon, s. selvadurai.  (2015).  from environmental vulnerability to resilience the malaysian experience.  - Bab 2 : 45 - 62. 

a. c. er, a. buang, a. habibah, m. e. toriman, j. hamzah, m. j. mohd fuad, s. sivapalan, r. katiman, n. lyndon, m.mastura & s. a. sharifah mastura.  (2015).  from environmental vulnerability to resilience the malaysian experience.  - Bab 6 : 137 - 160. 

abazue c.m, er a.c, a.s.a ferdous alam, halima begum.  (2015).  oil palm smallholders and its sustainability practices in malaysia.  - mediterranean journal of social sciences.  483-488. 

norzalina zainudin, chamhuri siwar, er ah choy, norshamliza chamhuri.  (2015).  civilization, hopes and discontents: insights from the social science and humanities.  - Chapter 1 : 9-22. 

j. hamzah, a. habibah, a. buang, s. a. sharifah mastura, i. mushrifah, j. othman, a. c. er, m. j. mohd. fuad, m. e. toriman, m. mahmud, n. lyndon, s. sivapalan.  (2015).  from environmental vulnerability to resilience the malaysian experience.  - Bab 8 ; 181 - 200. 

a. habibah, i. mushrifah, j. hamzah, a. buang, r. mohamed, s. a. sharifah mastura, m. e. toriman, a. c. er., a. hazita, m. j. mohd. fuad, i. yahaya, s. selvadurai, n. lyndon, a. b. kaseh.  (2015).  from environmental vulnerability to resilience the malaysian experience.  - Chapter 7 : 161 - 179. 

halima begum, er a c & a.s.a. ferdous alam.  (2015).  sustainability practices among oil palm settlers the environment, social and economic perspectives.  - proceedings of the 5th international seminar of regional network on poverty eradication (renper), universiti malaysia kelantan. 

a. habibah, j. hamzah, a.c.er, a.buang & s.selvadurai.  (2015).  appraisal of family-friendly tourism in malaysia.  - tourismos: an international multidisciplinary journal of tourism.  37-62. 

azima abdul manaf dan er ah choy.  (2015).  isu pemilikan tanah dan implikasinya terhadap produktiviti pekebun kecil:kajian kes pekebun kecil di lahad datu.  - geografia online: malaysia journal of society and space.  112-124. 

er ah choy.  (2015).  societal and environmental drivers affecting the sustainable development of coastal tourism in kudat.  - journal of food, agriculture & environment.  147-149. 

mohd syukri zainuddin, lee yook heng, nurul afsar, mohammad imam hasan reza, er ah choy, noraini fakhira abdullah, pauzi abdullah, rahmah elfithri, mohamad raihan taha.  (2015).  flooding in pahang river basin: development of an integrated approach for aiding decision making process for better flood disaster risk management.  - technology & applications of disaster management international conference 2015. 

a. s. a. ferdous alam, er ah choy and halima begum.  (2015).  the impact of redevelopment on the quality of life of the local community in frasers hill pahang.  - proceedings of the international conference on natural resources, tourism & service management 2015.  149-154. 

wan izzulhilmi che wan nor azizi & er ah choy.  (2015).  peradaban, harapan & kilanan: wawasan pemikiran komunikasi & sains pembangunan.  - Bab 14 : 209-231. 

er ah choy & wan izzulhilimi bin che wan nor azizi.  (2015).  peradaban, harapan & kilanan: wawasan pemikiran komunikasi & sains pembangunan.  - Bab 13 : 185-208. 

akhmad muhammadin, er ah choy & suraiya ishak.  (2015).  peradaban, harapan & kilanan: wawasan pemikiran komunikasi & sains pembangunan.  - Bab 9 : 111-120. 

mazaitul shima mazlan, shahirah umamah abdul mutalib, er ah choy.  (2015).  faktor sikap pelajar dalam peningkatan tahap kelestarian kampus: kajian kes universiti kebangsaan malaysia.  - geografia online: malaysia journal of society and space.  52-65. 

izzah syazwany mohd nasir, noraida abdul rani, er ah choy.  (2015).  faktor pemilihan minyak sawit dalam kalangan pengguna: kajian.  - geografia online: malaysia journal of society and space.  66-77. 

er ah choy, nur azlin mohamad awal, mohd fakhrulrazi shamsudin.  (2015).  kesedaran awam terhadap pemeliharaan dan pemuiharaan alam semulajadi : kes taman wetland, putrajaya.  - geografia online: malaysia journal of society and space.  13-26. 

er ah choy, azwa zawana binti azlin, naquiah binti abd rahman, ng sheue li.  (2015).  promoting sustainable practices in institutions of higher learning.  - 3rd international conference on limits to growth & sustainability: contemporary issues & perspectives. 

a.s.a ferdous alam, er ah choy, halima begum, chamhuri siwar.  (2015).  determining the factors for sustainability practices of oil palm smallholders.  - 3rd international conference on limits to growth & sustainability: contemporary issues & perspectives. 

halima begum, a.s.a ferdous alam, er ah choy, chamhuri siwar, suraiya ishak.  (2015).  the issues of practices for sustainable oil palm.  - 3rd international conference on limits to growth & sustainability: contemporary issues & perspectives. 

rosniza aznie c.r, jumaat a., tukimat lihan, zaini s., mokhtar j., er ac.  (2015).  tourist experienced in ecotourism site in malaysia.  - international conference on local knowledge 2015. 

halima begum, er ah choy, chamhuri siwar, a. s. a. ferdous alam, suraya ishak.  (2015).  smallholder`s practices towards environment sustainability.  - advanced science letters.  1742-1745(4). 

zaimah ramli, er ah choy, sarmila md sum, habibah ahmad, hamzah jusoh, nurain sahazali, nadiah hanani abdul jalil.  (2015).  kepuasan pelancong dengan melaka sebagai destinasi pelancongan lestari: satu kajian persepsi.  - geografia: malaysia journal of society and space.  135-142. 

halima begum, er ah choy, a. s. a. ferdous alam, chamhuri siwar & suraiya ishak.  (2015).  civilization, hopes and discontent insights from the social sciences and humanities.  - Chapter 6 : 87-99. 

nadiah hanani abdul jalil, jalaluddin abdul malek, er ah choy.  (2015).  pusat transformasi bandar (utc) sebagai pusat hentian setempat: kajian kepuasan pelanggan terhadap perkhidmatan utc kuala lumpur.  - geografia: malaysia journal of society and space.  143-157. 

a. s. a. ferdous alam, chamhuri siwar, halima begum, er a. c., basri talib & rahmah elfithri.  (2015).  local economic impacts of human capital migration.  - mediterranean journal of social sciences.  563-569. 

a. s. a. ferdous alam, er a. c., halima begum & md mahmudul alam.  (2015).  the factors of selecting malaysia as tourist destination.  - mediterranean journal of social sciences.  491-498. 

a. s. a. ferdous alam, er ah choy and halima begum.  (2015).  malaysian oil palm industry: prospect and problem.  - journal of food agriculture & environment.  143-148. 

halima begum, er ah choy, chamhuri siwar, a. s. a. ferdous alam, suraya ishak.  (2015).  smallholder`s practices towards environment sustainability.  - international conference on business, management, tourism and hospility (bizmatour 2015). 

a. s. a. ferdous alam, mohammad imam hasan reza, halima begum, er ah choy and joy jacqueline pereira.  (2015).  promoting community for disaster risk reduction.  - international conference on business, management, tourism and hospility (bizmatour 2015). 

a. s. a. ferdous alam, halima begum, chamhuri siwar, er ah choy and basri talib.  (2015).  local economic impacts of human capital migration.  - 2nd afap international conference on enterprise and business management (aicebm 2015). 

akhmad muhammadin, er a. c., suraiya ishak.  (2015).  teknologi maklumat, strategi pembezaan dan prestasi kewangan industri perbankan di indonesia.  - geografia: malaysian journal of society and space.  74 - 86. 

joy jacqueline pereira, lim chou sian, er ah choy.  (2015).  bencana banjir 2014: respon dasar, tindakan dan penyelidikan.  -

er ah choy, nurain sahazali, nadiah hanani abdul jalil, a.s.a. ferdous alam, halima begum.  (2015).  kelestarian bukit fraser sebagai destinasi-eko.  -

aki @ zaki bin aman, er, a.c. & chamhuri siwar.  (2015).  penanaman sawit lestari dan impak sosioekonomi.  - e-bangi: journal of social sciences and humanities.  057-080. 

wan izzulhilmi che wan nor azizi dan er, a.c.  (2014).  kesedaran amalan pertanian lestari dalam kalangan peneroka sawit.  - the 5th international conference on social sciences & humanities. 

a.s.a. ferdous alam, er a.c and halima begum.  (2014).  tourism development from the perspectives of sustainability in melaka state.  - shs web of conferences.  636-643. 

halima begum, er a c, a.s.a. ferdous alam, chamhuri siwar.  (2014).  perception of tourist towards the role of stakeholders for tourism development.  - current world environment.  704-712. 

norzalina zainudin, chamhuri siwar, er ah choy and norshamliza chamhuri.  (2014).  evaluating the role of energy efficiency label on consumers` purchasing behaviour.  - apcbee procedia -5th international conference on environmental science and development (icesd 2014).  326-330. 

hamzah jusoh , habibah ahmad , amriah buang , farah asikin zoolberi , nik munerahanim nik muhammad , nur azwani yusop , er ah choy , mastura mahmud.  (2014).  impak kawasan hijau terhadap persekitaran sosial komuniti putrajaya.  - geografia: malaysia journal of society and space.  26-39. 

sri winarni samsir , habibah ahmad , hamzah jusoh , er ah choy , amriah buang , mastura mahmud , hazita azman , siti kasmera ariffin , kiki rizki makiya.  (2014).  pengintegrasian elemen pendidikan dalam pembangunan produk rekreasi di tapak warisan dunia melaka: pendekatan pengusaha pelancongan..  - geografia:malaysian journal of society and space.  13-25. 

kiki rizki makiya, habibah ahmad, hamzah jusoh, amriah buang, noralyanie nor azazi,sri winarni samsir, er ah choy.  (2014).  hospitaliti dalam pembangunan pelancongan di indonesia: perspektif psikologi positif.  - geografia - malaysian journal of society and space (themed issue on tourism in new development dimension).  40 - 54. 

habibah ahmad , hamzah jusoh , er ah choy , amriah buang , sivapalan selvadurai , nur farahin zainuddin , mohd kamarulnizam abdullah , sri winarni samsir.  (2014).  mengurus pelancongan sempadan malaysia-thailand: kesepaduan atau konflik.  - geografia: malaysian journal of society and space.  65 - 71. 

er, a.c , habiah ahmad, nurl farhan mohamed iris, hamzah jusoh, zaimah ramli, sarmila md sum, amriah buang, nadih hani abdul jalil, nurain sahzali.  (2014).  analisis faktor kepuasan pelancong terhadap tarikan pelancongan warisan di melaka.  - geografia: malaysian journal of society and space.  72 - 86. 

habibah ahmad, hamzah jusoh, er ah choy, amriah buang, jamilah mohamad, mushrifah idris, sri winarni samsir, ahmad nazrin aris anuar, nur atiqah kamarus zaman, nur amirah kamarus zaman.  (2014).  pembelajaran berasaskan projek perundingan pelancongan sebagai wadah pemerkasaan modal insan pelajar siswazah (tourism consultancy project-based learning as medium in empowering the human capital of g.  - geografia - malaysian journal of society and space (themed issue on tourism in new development dimension).  87-96. 

halima begum , er a c , a. s. a. ferdous alam , chamhuri siwar , lubna alam.  (2014).  social sustainability of oil palm cultivations : settler`s perspective.  -

norzalina zainudin, chamhuri siwar, er ah choy & norshamliza chamhuri..  (2014).  consumer`s awareness and green purchasing behaviour- case of energy efficient lighting and low income group in urban malaysia.  - proceedings of the 4th renper intertnational seminar on poverty eradication / universiti malaysia kelantan.  334-353. 

nur atiqah kamarus zaman , habibah ahmad , nur amirah kamarus zaman , er ah choy , hamzah jusoh , zaini sakawi , amriah buang.  (2014).  tahap penglibatan penduduk dalam pembangunan pelancongan putrajaya.  - geografia:malaysian journal of society and space.  114 - 123. 

habibah ahmad , nur farahin zainuddin , hamzah jusoh , amriah buang , er ah choy , sri winarni samsir , hazita azman , mastura mahmud.  (2014).  peranan media sosial tripadvisor dalam mempromosikan tapak warisan dunia melaka.  - geografia: malaysian journal of society and space.  97 - 113. 

sheau tsuey chong, denise koh choon lian, er ah choy, nur akmal abdullah@goh, mazlan m. tahir, norhana arsad, norngainy mohd tawil, jamiah manap, adi irfan che ani.  (2014).  budaya berjalan dan kemudahan untuk pejalan kaki dari stesen komuter ke fssk, ukm.  - integrating cca,drr and l. 

hamzah jusoh, habibah ahmad, amriah buang, er ah choy & sharifah mastura syed abdullah.  (2014).  investigating the shoreline touristic resources for sustainable tourism development options.  - proceeding of intcess14 - international conference on education and social sciences proceeding. 

hamzah jusoh , habibah ahmad , amriah buang , nor ghani mohd nor , lelawati ismail , er ah choy , muhammad saiful nizam aduluan , siti nor safiza safiei.  (2014).  transformasi medan pasar sebagai ikonik pelancongan warisan: dimensi keperluan pengunjung dan tuntutan peniaga.  - geografia: malaysian journal of society and space.  138 - 153. 

nur amirah kamarus zaman , habibah ahmad , nur atiqah kamarus zaman , hamzah jusoh , zaini sakawi , er ah choy , amriah buang.  (2014).  imej pelancongan putrajaya dalam media sosial: perspektif pengguna tripadvisor.  - geografia:malaysian journal of society and space.  55 - 64. 

a.c. er , s.t. chong , m.n. abd. rahim and r. katiman.  (2014).  water quality of iskandar malaysia.  - research journal of applied sciences.  9(1):44-47. 

norzalina zainuddin, chamhuri siwar, er ah choy & norshamliza chamhuri.  (2014).  malaysian attitudes towards energy efficiency and appliance efficiency standards.  - icosh 2014. 

er, a.c..  (2014).  an evaluation of the ecotourism development pathway.  - international journal of business tourism and applied science.  2(1):44-49. 

halima begum, er ah choy, a.s.a. ferdous alam & rafiqul islam.  (2014).  sustainability of oil palm smallholders: the environment, social and economic perspectives.  - the 5th international seminar of regional network on poverty eradication. 

halima begum, a. s. a. ferdous alam, er ah choy, chamhuri siwar, suraya ishak.  (2014).  economic sustainability of oil palm cultivations: smallholders perspective..  - the 5th international seminar of regional network on poverty eradication. 

nurul fadilah binti mohd nawi dan er ah choy.  (2014).  analysis of strengths-weaknessess-opportunities-threat of maliau basin as a world heritage site.  - research journal of applied science.  474-480. 

er ah choy.  (2014).  climate change and sstainable coastal tourism development: a case study of kudat.  - climate change adaptation forum 2014. 

er ah choy, rozita hod, mazrura sahani, hidayatulfathi othman, zainuddin mohd ali.  (2014).  transdisciplinary public health research and policy implications.  - asia pacific research universities workshop (apru). 

choy e.a., lazim n.b.m..  (2014).  ecotourism knowledge among the local communities of lata jarum, pahang.  - social sciences (pakistan).  369 - 374. 

akhmad muhammadin, er, a.c. dan suraiya ishak.  (2014).  isu dan cabaran dalam pembentukan landscape perbankan di indonesia: satu kalian terri dan empirik.  - geografia: malaysian journal of society and space.  148-158. 

nurain sahazali, er ah choy, halima begum.  (2014).  peranan pihak berkepentingan dalam pemeliharaan pelancongan lestari : perspektif pelancong.  - konferensi internasional hubungan indonesia-malaysia ke 18, the 8th international conference on indonesia-malaysia relations / universitas lancang kuning, pekanbaru.  137-144. 

akhmad muhammadin, er ah choy & suraiya ishak.  (2014).  analisis kualiti perkhidmatan terhadap kepuasan pelanggan pembiayaan ocbc-nisp bank bandar makasar, indonesia.  - icosh2014. 

halima begum, a. s. a. ferdous alam, er ah choy and chamhuri siwar.  (2014).  social sustainability of oil palm settlers.  - national research and innovation conference for graduate student in social sciences (gs-nric 2014).  1002-1015. 

nadiah hanani abdul jalil dan er ah choy.  (2014).  perspektif pelancong terhadap impak pemeliharaan melaka sebagai tapak warisan.  - konferensi internasional hubungan indonesia-malaysia ke 18, the 8th international conference on indonesia-malaysia relations / universitas lancang kuning, pekanbaru.  63-71. 

halima begum, er a c., a. s. a. ferdous alam and chamhuri siwar..  (2014).  perceptions of tourists towards the role of stakeholders for tourism development.  - current world environment.  704-712. 

er, a.c., wan izzulhilmi che wan nor azizi.  (2014).  amalan pertanian lestari dan impak terhadap kelestarian penanaman sawit.  - the 5th international conference on social sciences and humanities. 

a. s. a. ferdous alam, er a c, halima begum.  (2014).  the factors towards tourism development in melaka.  - the 5th international conference on social sciences & humanities. 

halima begum, er a c, ferdous alam, chamhuri siwar, suraya ishak.  (2014).  oil palm cultivation and environmental sustainability.  - the 5th international conference on social sciences & humanities. 

halima beguma, er a. c, a. s. a. ferdous alam and nurain sahazali.  (2014).  tourists perceptions towards the role of stakeholders in sustainable tourism.  - procedia - social and behavioral sciences.  313-321. 

er ah choy.  (2014).  pembangunan lestari di malaysia: harapan dan kenyataan.  - 3-14. 

er ah choy.  (2014).  pembangunan lestari di malaysia: harapan dan kenyataan.  - 37-51 (3). 

sheau tsuey chong, chang peng kee, er ah choy, nasrudin subhi, norulhuda sarnon, mohd suhaimi mohamad.  (2013).  measuring social capital: a standard measurement for researching social networks in the family and community life.  - integrating cca,drr and l. 

sheau tsuey chong, chang peng kee, er ah choy, nasrudin subhi, norulhuda sarnon, mohd suhaimi mohamad.  (2013).  measuring social capital: a standard measurement for researching social networks in family and community life.  - kemudahterancaman dan ada. 

chang peng kee, er ah choy, norliana hashim.  (2013).  faktor-faktor yang mempengaruhi hubungan organisasi publik menurut persepsi alumni sebuah fakultas universitas kebangsaan malaysia.  - komunikasi global.  3(1): 9-26. 

a. habibah, i. mushrifah, j. hamzah, a. buang, m. e. toriman, s. r. s. abdullah, k. z. nur amirah, z. nur farahin, a. c. er.  (2013).  biosphere reserve as a learning tourism destination: approaches from tasik chini.  - international journal of geosciences.  4:1447-1458. 

sheau tsuey chong, wei keat ten, ah choy er, denise koh.  (2013).  neighbourhood participation as a proxy to civic engagement.  - pertanika journal of social sciences & humanities.  21(S):147-158. 

junaidi awang besar, mohd faidz mohd zain, mohd fuad mat jali, mohd azlan abdullah, novel lyndon, sivapalan selvadurai, er ah choy, ahmad rizal mohd yusof & mohd hazim abd ghani.  (2013).  pola pengundian etnik cina dalam pilihan raya umum (pru) ke-13, 2013.  - persidangan transformasi sosial kebangsaan 2013 (transformasi), univ malaysia sabah (ums). 

rosniza aznie c. r., a. c. er, abdul rahim m. n., lyndon n., usman y., suriati g., mohd fuad m. j., mohd yusof hussain.  (2013).  family planning practices in rural community.  - asian social science.  9(14):42-49. 

winarni s.s, habibah a, ah choy er, hamzah j, sivapalan s.  (2013).  pengintegrasian elemen pendidikan dalam produk pelancongan di melaka bandaraya warisan dunia.  - international conference on research in ethics education (icrieed 2013) / association of malaysian muslim intellectuals. 

hamzah jusoh, habibah ahmad, mushrifah idris, er ah choy, amriah buang, k. z. nur atiqah, k. z. nur amirah, a. a. ahmad nazrin & s. sri winarni.  (2013).  impak pelancongan terhadap kualiti hidup bandar: perspektif penduduk putrajaya.  - akedemika.  83(1): 45 - 56. 

er, a.c., siti syahidah, s., a. habibah & j. hamzah.  (2013).  impak pembangunan industri petroleum terhadap kesejahteraan hidup penduduk setempat di paka, terengganu.  - akademika.  83(1):57-64. 

sivapalan selvadurai, a. c. er, n. lyndon, a. buang, m. j. mohd. fuad, a. habibah, j. hamzah, a. m. azima, a. b. junaidi & mohd yusof hussein.  (2013).  small-scale retailers in an island town.  - asian social science.  9(14):86-97. 

azima abdul manaf, a. c. er, ismail o., n. lyndon, s. sivapalan, mohd yusof hussain, suhana saad, r. zaimah, m. s. sarmila & m. j. fuad.  (2013).  property market efficiency: developed or vacant property.  - asian social science.  9(14):63-69. 

yew wong chin vivien, a. c. er & noor azlan mohd noor.  (2013).  chinese culture and cancer among malaysian chinese cancer survivors.  - asian social science.  9(14):30-41. 

j. hamzah, a. c. er, m. h. haffiz aliasak, a. habibah, a. buang, m. y. hussain & s. sivapalan.  (2013).  development process and its implication on the native land ownership.  - asian social science.  9(14):18-29. 

a. habibah, a. c. er, i. mushrifah, j. hamzah, s. sivapalan, a. buang, m. e. toriman & s. a. sharifah mastura.  (2013).  revitalizing ecotourism for a sustainable tasik chini biosphere reserve.  - asian social science.  9(14):70-85. 

ahmad rizal mohd yusof, er ah choy, zuliskandar ramli, mohd fuad mat jali, junaidi awang besar, muhammad asri mohd ali & novel lyndon.  (2013).  occidentalism and latin language: the lingua franca of knowledge.  - asian social sciences.  50-54. 

novel lyndon, a. c. er, sivapalan s., hasnah ali, rosniza a. c. r., azima a. m., junaidi a. b., fuad m.j., mohd yusoff hussein dan a. r. mohd helmi.  (2013).  the world-view of penan community on quality of life.  - asian social science.  9(14):98-105. 

er ah choy.  (2013).  pembangunan pelancongan lestari di melaka: perspektif pelancong.  - geografia online malaysian journal of society and space.  9(3):12-23. 

nurain sahazali, er ah choy.  (2013).  ekopelancongan di taman paya bakau, seri manjung, perak: persepsi penduduk terhadap impak pembangunan.  - geografia malaysia journal of society and space.  9(3):12-23. 

a. habibah, j. hamzah, a. c. er, a. buang, s. selvadurai & i. mushrifah.  (2013).  city-city tourism collaboration in the straits of malacca development region: key success factors.  - asian social science.  9(13):40-52. 

er, a.c., sheau tsuey chong, habibah ahmad, sarmila md sum, zaimah ramli.  (2013).  the sustainability of fraser`s hill as an eco-destination.  - international journal of business tourism and applied sciences.  1(2):109-115. 

sivapalan selvadurai, er ah choy, novel lyndon, sarmila md sum, suhana saad1, azima abd manaf, zaimah ramli.  (2013).  penan natives` discourse for and against development.  - asian social science.  9(8):72-78. 

mohammad imam hasan reza, er ah choy & joy jacqueline pereira.  (2013).  a field based pedagogical approach is needed for understanding sustainability: the context of disaster risk reduction in malaysia.  - bridging sustainability in research to pedagogy: theory and practice conference. 

sheau tsuey chong, m.s. mohamad, a.c. er.  (2013).  the mental health development in malaysia: history, current issue and future development.  - asian social science.  1-8. 

rozita hod, hidayatulfathi othman, nurul azimah jemain, mazrura sahani, kamarulismail udin, zainudin mohd ali, er ah choy, zailiza suli.  (2013).  the combi approach in managing dengue cases in an urban residential area, nilai, malaysia.  - international journal of public health research.  3(2):347-352. 

sivapalan selvadurai, er ah choy, marlyna maros, mohd kamarulnizam abdullah.  (2013).  shifting discoursesin social sciences: nexus of knowledge and power.  - asian social sciences.  9(7): 97-106. 

sheau tsuey chong, juliana rosmidah jaafar, denise koh, subhi, n., m.s. mohammad, sarnon, n., ah choy er, peng kee chang.  (2013).  safe neighbourhood promotes trust in business organisations via neighbourhood social capital.  - the first annual international scholars conference in taiwan, "fostering growth in knowledge-based economy through technopreneurship: building a platform for a smooth transformation of innovative tech. 

md shahin mia, rawshan ara begum, a.c. er, raja datuk zaharaton raja zainal abidin, joy jacqueline pereira.  (2013).  trends of dengue infections in malaysia, 2000-2010.  - asian pacific journal of tropical medicine.  6(6):462-466. 

ali salman, er ah choy, wan amizah wan mahmud & roslina abdul latif.  (2013).  tracing the diffusion of internet in malaysia: then and now.  - asian social science.  9(6):9-15. 

er ah choy, nurul bariah mat lazim.  (2013).  tahap kefahaman ekopelancongan dalam kalangan komuniti lokal di lata jarum, raub, pahang.  - geografia online malaysia journal of society and space.  27-34. 

n. lyndon, salfarina abd. gapor, er a. c., m. j. mohd fuad, s. selvadurai, a. r. mohd helmi & r. zaimah.  (2013).  phenomenological approach in gauging native community quality of life.  - asian social science.  9(6):30-35. 

n. lyndon, a. c. er, s. selvadurai, m. s. sarmila, m. j. fuad, r. zaimah, azima a. m, suhana s., a. mohd nor shahizan, ali salman & rose amnah abd rauf.  (2013).  revisiting community bidayuh empowerment using abductive research strategy.  - asian social science.  9(8):64-71. 

r. zaimah, m. s. sarmila, s. selvadurai, n. lyndon, a. c. er, muhd norizam jamian.  (2013).  the history and current status of dual-career families in malaysia.  - asian social science.  9(6):16-21. 

azima a.m, er ah choy, suhana saad, sivapalan selvadurai, novel lyndon, mohd yusoff husain, mohd fuad mat jali, zaimah ramli, sarmila md sum.  (2013).  keterlibatan penduduk lokal dalam pembangunan pertanian: kajian kes di daerah kuala pilah, negeri sembilan.  - geografia online malaysia journal of society and space.  9(1):21-29. 

a. habibah,i. mushrifah, j. hamzah, a. c. er, a. buang, m. e. toriman, s. selvadurai & r. zaimah.  (2013).  place-making of ecotourism in tasik chini: from exploratory to the contemporary biosphere reserve.  - asian social science.  Vol. 9 (6): 84-95. 

zaimah r., sarmila m. s., n. lyndon, azima a. m., s. selvadurai, suhana saad, er a. c..  (2013).  financial behaviors of female teachers in malaysia.  - asian social science.  9(8):34-41. 

er ah choy, abd rahim md nor, katiman rostam, melasutra md dali.  (2013).  asian and pacific cities : development pattens..  - 82-97. 

mohamad naim rasidi, mazrura sahani, hidayatulfathi othman, rozita hod, shaharudin idrus, zainudin mohd ali, er ah choy, mohd hafiz rosli.  (2013).  aplikasi sistem maklumat geografi untuk pemetaan reruang-masa: suatu kajian kes denggi di daerah seremban, negeri sembilan, malaysia.  - sains malaysiana.  1073-1080. 

hasnah ali, a. c. er, a. r. ahmad, n. lyndon, sanep ahmad.  (2013).  an analysis of the impact of foreign investment on regional disparities: a case of malaysia.  - asian social science.  Vol 9, No 14 (2013):7-17. 

sheau tsuey chong, jamiah manap, denise koh, ah choy er, norhana arsad, nurakmal abdullah@goh tuo ho, mazlan mohd tahir, norngainy mohd tawil.  (2012).  the potential of a roofed walk-way in increasing walking habit among ukm staff and students.  - kongres pengajaran dan pembelajaran ukm 2012. 

ac er, me toriman, rozita hod, sharifah mastura syed abdullah, mazrura sahani, hidayatulfathi othma, saperi sulong, amrizal muhammad nur, nor rohaizah jamil and lee qiao yun.  (2012).  a costing methodology for dengue.  - the social sciences.  7(1):20-23. 

er ah choy, mohd faizal abdul rashid, katiman rostam, eshah@aishah mohamed, abd. rahim md. nor.  (2012).  analisis persepsi masyarakat setempat terhadap impak pembangunan di wilayah pembangunan iskandar, johor.  - geografia online malaysia journal of society and space.  8(7):183-195. 

j. hamzah, a. habibah, nooraryanie nor azazi, suraiya ishak, s. selvadurai, a. buang, m.e. toriman, n. lyndon, er a.c..  (2012).  kesan kewujudan institusi pengajian tinggi awam ke atas pembentukan ideopolis sekunder bandar baru bangi.  - geografia online malaysia journal of society and space.  8(6):59-75. 

er ah choy, catherine lau yp.  (2012).  analisis jaringan pihak-pihak berkepentingan ke arah kelestarian kampus.  - geografia online malaysia journal of society and space.  8(6):109-116. 

er ah choy, asmahani atan, nur salihah kassim, mazrura sahani.  (2012).  metodologi kuantitatif dalam mengkomputasi impak sosio-ekonomi perubahan iklim kepada kesihatan manusia.  - geografia online malaysia journal of society and space.  8(6):134-149. 

n. lyndon, s. selvadurai, er. a.c, zaimah r, mohd fuad mat jali, junaidi awang besar, sarmila m.s, a. habibah, j. hamzah, a. hasnah, m. richard, mohd yusof hussain.  (2012).  makna penyertaan dalam program pembangunan komuniti: satu tinjauan dari sudut pandangan dunia komuniti bidayuh luar bandar.  - geografia malaysia journal of society and space.  8(6): 24 - 31). 

mohd fuad mat jali, junaidi awang besar, amriah buang, mohd jalaluddin hashim, novel lyndon, hamzah jusoh, habibah ahmad, sivapalan selvadurai, er ah choy & mohd yusof hussain.  (2012).  pengaruh politik alam sekitar terhadap persepsi pengundi: kajian kes dun kedah.  - geografia online: malaysian journal of society and space (themed issue on the management of social-ecological change and uncertainties in the global era).  8(6):117-133. 

sheau tsuey chong, m.s. mohamad, ah choy er.  (2012).  the mental health development in malaysia: from independence till now.  - the 5th thai-malaysian international conference on southeast asian studies. 

sheau tsuey chong, er, a.c., juliana rosmidah jaafar, samsudin abdul rahim, subhi, n., kalaivanee a. sandran.  (2012).  family communication and peer support contribution towards levels of achievement motivation amongst at-risk youths.  - local economic and social development in cities of the asian and pacific region. 

er ah choy, rosniza aznie che rose, novel lyndon, mohd azlan abdullah, adam jh.  (2012).  ekopelancongan dan analisis sosioekonomi komuniti ulu dong.  - geografia online malaysian journal of society and space.  8(9):46-52. 

sivapalan selvadurai, er ah choy and marlyna maros.  (2012).  generic skills of prospective graduates from the employers` perspectives.  - the 8th international malaysian studies conference. 

ahmad nizal mg, rozita h, mazrura s, zainudin ma, hidayatulfathi o, faridah ma, noor artika i, er ac.  (2012).  dengue infections and circulating serotypes in negeri sembilan, malaysia.  - malaysian journal of public health medicine.  12(1): 21-30. 

m.e toriman, nor rohaizah jamil, i mushrifah, s. a. sharifah mastura, habibah ahmad. c. er, nor azlina abdul aziz, q. y. lee, rahmah elfitri.  (2012).  identification and mapping of lotus (nelumbo nucifera) distribution in a shallow lake using satte; ite imagery and geographical information system (gis).  - journal of engineering and applied sciences.  7(4):300-305. 

badrul hisham abd samad, er ah choy, hidayatulfathi othman, lokman hakim sulaiman, mazrura sahani, mohd hanif zailani, nik muhammad nizam nik hassan, nurul ashikin zainon, cp ramachandran, rozita hod,.  (2012).  health impacts of climate change.  - 47. 

a.c. er, abd rahim md. nor and katiman rostam.  (2012).  palm oil milling wastes and sustainable development.  - msc8. 

a.c. er.  (2012).  remaking of environmental history for the oil palm and palm oil sector in malaysia.  - msc8. 

sheau tsuey chong, pei shan teh, juliana rosmidah jaafar, samsudin a. rahim, subhi, n., nor ba`yah abdul kadir, hoesni, suzana mohamad, mohamad, s. m., nen, s., sarnon, n., er, a.c..  (2012).  pemantauan ibu bapa kepada pembentukan emosi negatif dan motivasi pencapaian remaja.  - persidangan icosh ukm 2012, fakulti sains sosial dan kemanusiaan, ukm. 

a.c. er, a.p.j. mol and c.s.a (kris) vankoppen.  (2012).  ecological modernization in selected malaysian industrial sectors: political modernization and sector variations.  - msc 8. 

sivapalan selvadurai, er ah choy & marlyna maros.  (2012).  generic skills of prospective graduates from the employers perspectives.  - asian social science;.  8(12):295-303. 

md shahin mia, rawshan ara begum, a.c. er, raja zaharaton raja zainal abidin, joy jacqueline pereira.  (2012).  cost of dengue in the public health system: the case of seremban district in malaysia.  - proceedings 3rd international conference on human habitat and environment. 

md. shahin mia, rawshan ara begum, ah-choy er, raja datuk zaharaton raja zainal abidin and joy jacqueline pereira.  (2012).  burden of malaria at household level: a baseline review in the advent of climate change.  - journal of environmental science and technology.  5(1):1-15. 

a.c. er, a.p.j. mol and c.s.a. (kris) van koppen.  (2012).  ecological modernization in selected malaysian industrial sectors: political modernization and sector variations.  - journal of cleaner production.  24(2012): 66-75. 

n. lyndon, er. a.c, s. selvadurai, m.j. mohd fuad, junaidi a.b, rosniza a. c. r. and mohd. helmi abdul rahim.  (2012).  constructs of economic participation of rural native men and women.  - journal of applied sciences research.  8(8): 4103-4112. 

novel lyndon, er ac, s selvadurai, mimi hanida am, zaidah mustapha, eshah mohamed.  (2012).  pemahaman komuniti penan tentang makna keperkasaan dalam program penempatan semula (pps) di daerah belaga, sarawak.  - geografia online malaysia journal of society and space.  8(8):96-105. 

er, a.c., ravichandran moorthy, lyndon, n., selvadurai, s., sheau tsuey chong, adam, j.h..  (2012).  perception of local community towards community-based ecotourism.  - advances in natural and applied sciences,.  6(2): 213-218. 

nadiah abdul halim, er ah choy, jumaat h adam, mohd afiq aizat juhari, siti norhafizah ahmad tarmidzi.  (2012).  potensi pelancongan di matu-daro, sarawak: persepsi komuniti lokal.  - geografia online malaysian journal of society and space.  8(9):13-21. 

er ah choy, mohd azlan abdullah, rosmiza mohd zainol.  (2012).  kemampanan persekitaran klaster sawit: kajian kes di sekitar pulau carey, selangor.  - geografia online malaysia journal of society and space.  8(8):121-129. 

rosniza aznie cr, asmah a, zaini s, abdul rahim mn, rosmiza mz, novel l, mohd fuad mj, jumaat a, er ah choy, mohd yusof hussain.  (2012).  dilema perumahan penduduk tempatan bukit fraser dalam arus pembangunan ekopelancongan.  - geografia online malaysian journal od society and space.  8(8):47-54. 

lyndon, n., a.c. er, selvadurai, s., m.j. mohd. fuad, mohd yusof hussain, and a.b. junaidi.  (2012).  bidayuh world view on participation and empowerment in community development.  - advances in natural and applied sciences.  6(1):10-18. 

er, a.c., s. selvadurai, n. lyndon, sheau tsuey chong, adam, j.h., mohd fuad, m.j., a. habibah and j. hamzah.  (2012).  the evolvement of tagal on ecotourism and enviornmental conservation: a case study in kampong luanti baru, sabah.  - advances in natural and applied sciences.  6(1):61-64. 

er ah choy, asmahani atan, harsuzilawati muhammed, zaini sakawi, adam jh.  (2012).  analisis kelebihan kompetitif ekopelancongan di mukim ulu dong, raub, pahang, malaysia.  - geografia online malaysia journal of society and space.  8(8):158-169. 

j. hamzah, a. habibah, a. buang, k. jusoff, m.e. toriman, m.j. mohd fuad, a.c. er & a.m. azima.  (2012).  flood disaster, impacts and the tourism providers` responses: the kota tinggi experience.  - advances in natural and applied sciences.  6(1):26-32. 

a. habibah, i. mushrifah, j. hamzah, m.e toriman, a. buang, k. jusoff, m.j. mohd fuad, a.c. er, a.m. azima, a. habibah.  (2012).  assessing natural capitals for sustainable ecotourism in tasik chini biosphere reserve.  - advances in natural and applied sciences.  6(1):1-9. 

m.e.toriman, m.b. mokhtar and md. a.a.hossain, nor azlina abdul aziz, sulong mohamad, noorazuan md. hashim, shaharuddin ahmad, noraziah ali, mohd fuad, m.j., a. habibah, j. hamzah.,a.c.er. mohd yusof.  (2012).  social leaning approach in integrated river basin management-lessons from the langat river basin, malaysia.  - advances in natural and applied sciences.  6(1): 42-51. 

m.j. mohd fuad, a.b. junaidi, a. habibah, j. hamzah, m.e. toriman, n. lyndon, a.c.er, s. selvadurai and a.m. azima.  (2012).  the impact of pesticides on paddy farmers and ecosystem.  - advances in natural and applied sciences.  6(1): 65-70. 

a.m. azima, s. suhana, a. habibah,mohd yusoff hussain, j. hamzah, er ah choy, m.e. toriman and m.j. mohd fuad..  (2012).  the prospects of highland ecotourism in malaysia..  - advances in natural and applied sciences.  6(1): 79-84. 

mazrura sahani, hidayatulfathi othman, nadia atiqah mohd. nor, rozita hod, zainuddin mohd ali, mohamad naim mohamad rasidi dan er ah choy.  (2012).  kajian ekologi nyamuk aedes di senawang negeri sembilan, malaysia (ecology survey on aedes mosquito in senawang, negeri sembilan).  - sains malaysiana.  261-269. 

er, a.c., rosniza aznie che rose, zuraidah hassan, khairunnisa rosly, adam, j..  (2011).  analisis sosioekonomi komuniti ulu dong.  - simposium kebudayaan indonesia-malaysia ke 12 (skim xii), ukm bangi. 

er ah choy, chong sheau tsuey, alim biun, jumaat adam.  (2011).  the nascent ecotourim journey for mt tambuyukon.  - australian journal of basic and applied science.  5(12):3318-3312. 

katiman rostam, er ah choy, zaini sakawi, abd rahim md nor, aishah@eshah mohamed.  (2011).  pembandaran di pinggir wilayah metropolitan lanjutan: beberapa implikasi terhadap corak dan kualiti kejiranan.  - akademika.  81(3):19-29. 

n. lyndon , s. selvadurai , a. c. er and r. moorthy.  (2011).  culture and the participation of native in educational attainment.  - journal of social sciences.  7(4):649-654. 

w.m. wan nur`ashikin, a.c. er, a. noraziah, l. novel, h. halimaton saadiah and a. buang.  (2011).  diagnosing knowledge, attitudes, practices, sustainable campus, capacity building.  - world applied sciences journal.  13:93-98. 

choy, e.a., tsuey, c.s., biun, a., adam, j..  (2011).  the nascent ecotourism journey for mt. tambuyukon.  - australian journal of basic and applied sciences.  5(12):3318-3322. 

moorthy, r., n. lyndon, e.a. choy, s. selvadurai and k.a. talib.  (2011).  ethnicity and ethnic perception of indians.  - journal social sciences.  7(4): 590-596. 

selvadurai, s., moorthy, r., lyndon, n., and er, a.c..  (2011).  persistence of traditional retailing in an island town.  - american journal of economic and business administration.  3(3): 450-455. 

thomas, b., s. selvadurai, a.c. er, n. lyndon and r. moorthy.  (2011).  factors influencing commitment of volunteers? in neighborhood watch organization.  - journal of social sciences.  7(4): 569-574. 

er,a.c., sivapalan,s. , m.n. abd rahim, m.e. toriman, j.h.adam and a.buang.  (2011).  ecotourism: precepts and critical success factors.  - world applied sciences journal (special issue on sustainable development impact from the socio-environmental perspectives).  13:110-113. 

abd rahim md nor, katiman rostam, er ah choy, aishah mohamed, zaini sakawi, hasan mat nor, rosniza aznie che rose.  (2011).  public transport in iskandar malaysia development corridor: a analysis of the importance of service attributes.  - australian journal of basic and applied sciences.  5(7): 557-563. 

ravichandran moorthy, er ah choy, sivapalan selvadurai & novel lyndon.  (2011).  bioethics principles in the teaching of climate change.  - american journal of applied sciences.  8(10):962-966. 

m.n. abd. rahim, a.c. er, r. katiman, m. aishah, s. zaini, m.n. hasan and a.c.r. rosniza.  (2011).  assessing public transport service attributes using factor analysis.  - world applied sciences journal.  13:7-12. 

n. lyndon , r. moorthy , a. c. er and s. selvadurai.  (2011).  native understanding of participation and empowerment in community development.  - journal of social sciences.  7(4):643-648. 

m.j. mohd fuad, a.b. junaidi, a. buang, s. selvadurai, a.c. er and n. lyndon.  (2011).  ethnic attitudes, political preferences and the politics of stability.  - world applied sciences journal.  13:34-38. 

s.sivapalan, j.hamzah, a.habibah, a.buang, a.c.er, m.j.mohd fuad and n. lyndon.  (2011).  the impact of institutional regulation and facilitation on cross-border trade.  - world applied sciences journal.  13:18-22. 

l. novel, s. sivapalan, a.c.er, m.j. mohd fuad, m.zaidah, m.aishah and a.buang.  (2011).  intangible factors influencing gender difference in educational attainment using an abductive research strategy.  - world applied science journal.  13:46-52. 

er, a.c., raja datuk zaharaton raja zainal abidin, pereira, j.j..  (2011).  sustainable development of lagong hill forest reserve, malaysia.  - australian journal of basic and applied sciences.  5(7):364-370. 

er, a.c..  (2011).  a comparative analysis of the brazilian bioethanol sector and the malaysian palm biofuel sector.  - asian social science.  7(2): 74-78. 

er ah choy, elainie bte mohd khair, asmahani atan, mazrura sahani & zainudin mohd
ali.  (2011).  perubahan cuaca dan penyakit denggi: kajian kes di daerah seremban, negeri sembilan, malaysia.  - e-bangi, journal of social sciences and humanities..  6(1):38-48. 

er ah choy, asmahani atan, mazrura sahani, rozita hod, hidayatulfathi othman.  (2011).  analisis tren penyakit denggi di daerah hulu langat, selangor.  - malaysian journal of environmental management.  12(2): 67-75. 

er, a.c., sivapalan selvadurai, ardieansyah, asmadi & hamzah jusoh.  (2011).  pembangunan perindustrian dan impak terhadap ekonomi lokal di dumai, riau, indonesia.  - e-bangi.  6(2):302-316. 

a.c. er, abd. rahim md. nor and katiman rostam.  (2011).  palm oil milling wastes and sustainable development.  - american journal of applied sciences.  8(5):436-440. 

sivapalan selvadurai, er ah choy, marlyna maros and kamarulnizam abdullah.  (2011).  shifting discourses in social sciences: nexus of knowledge and power.  - icssh 2011: 2011 international conference on social science and humanity, chengdu, china. 

md. shahin, mia, rawshan ara begum, ah-choy er, raja datuk zaharaton raja zainal abidin and joy jacqueline pereira.  (2011).  malaria and climate change: discussion on economic impacts.  - american journal of environmental sciences.  7(1): 73-82. 

er, a.c..  (2011).  ecotourism: precepts, license to operate and learning points.  - sbesa 2011. 

er, a.c..  (2011).  pembangunan ekopelancongan dan penglibatan komuniti lokal.  - seminar dan bengkel pendedahan ekopelancongan. 

er, a.c. dan adam, j.h,.  (2011).  ekopelancongan dan penglibatan komuniti lokal di sarawak.  - ceramah transformasi pendidikan dan sosioekonomi serta ceramah potensi pelancongan di daerah matu, sarawak. 

katiman rostam , abd rahim md nor , er ah choy , aishah@eshah mohamed , zaini sakawi , hasan mat nor , rosniza aznie che rose.  (2011).  impak pembangunan bandar baru nusajaya wilayah iskandar malaysia terhadap kesejahteraan hidup penduduk asal setempat.  - geografia : malaysian journal of society and space.  7(5) Special Issue(14-28). 

sheau tsuey chong, karen farquharson, er ah choy, z. m. lukman and mostafa kamal mokhtar.  (2011).  enhancing youth civic engagement and generalized trust through bonding social capital among friends.  - pertanika of journal of social sciences and humanities.  19(S):57-64. 

m.e. toriman, a.c. er, mazlin mokthar, rahmah elfithri, muhammad barzani gasim, othman karim, mokhtar jaafar, nor azlina abdul aziz and nor rohaizah jamil.  (2011).  river regulation and its impact on river channel platform changes.  - journal of engineering and applied sciences.  6(6):423-427. 

m.e. toriman, othman jaafar, khairul nizam abdul maulud, s.a. sharifah mastura, nor azlina abdul aziz, muhammad barzani gasim, a.c. er, mohd fuad mat jali, nor rohaizah jamil and md. pauzi abdullah.  (2011).  modeling flood inundation in river catchment using hydraulic and geographical information system(gis) simulation approach.  - journal of engineering and applied sciences.  6(6):428-432. 

sheau tsuey chong, er, a. c., juliana rosmidah jaafar, subhi, n., sarnon, n., mohamad, m.s., peng kee chang.  (2011).  neighbourhood cohesion and perceived neighbourhood safety in the promotion of social capital amongst neighbours.  - local economic and social development in cities of the asian and pacific region. 

azima abdul manaf, er ah choy, rosniza aznie che rose,
suhana saad & noordeyana tambi.  (2010).  bio-kejuruteraan ekosistem dan spesies 2010 bukit fraser.  - 4 (191-202). 

jumaat h.adam, muhammad barzani gasim, zaini sakawi, er ah choy, zulfahmi ali rahman, noordeyana tambi, mohd afiq aizat juhari.  (2010).  bio-kejuruteraan penilaian ekosistem dan spesies 2010 bukit fraser.  - 261. 

katiman rostam, mochamad rosul, er ah choy, abdul rahim md nor, zaini sakawi, norazuan md hashim, aishah@esah hj muhammad.  (2010).  pembandaran dan rebakan bandar di pinggir wilayah metropolitan klang-langat.  - geografia onlinetm malaysian journal of society and space.  6(2): 37 - 50. 

er ah choy, asmahani atan, zainudin mohd ali, mazrura sahani.  (2010).  analisis sosioekonomi dan kadar insidens penyakit denggi di daerah seremban, negeri sembilan, malaysia..  - sebumi 3 2010: penjanaan ilmu serumpun kearah kelestarian penyelidikan dan kecemerlangan akademik, fssk ukm. 

er, ah choy, abd. rahim md. nor, katiman rostam.  (2010).  corporate social responsibility in the oil palm and palm oil production chain in johore, malaysia.  - the proceedings of the international conference on ethics & professionalism: sustainable science, technology & society (icep2010), pusat pengajian umum ukm. 

er ah choy, abd. rahim md. nor, katiman rostam.  (2010).  corporate social responsibility in the oil palm and palm oil production chain in johore, malaysia (abstrak).  - eubios journal of asian and international bioethics (ejaib) -(supplementary issue). vol.20(6), november 2010. 

shamsul amri baharuddin,lilia halim,janatul islah mohamed,tan raan han,supyan hussin,ahmad rizal mohd yusof,marlyna maros, mohd kamarulnizam abdullah,er ah choy,fuziah kartini hassan basri,chang peng.  (2010).  5th icmhesr.  - a newsletter for the fifth islamic conference of ministers of higher education and scientific research. 

er, a.c., rosli, m.h., asmahani a., mohamad naim m.r., harsuzilawati m..  (2010).  spatial mapping of dengue incidence: a case study in hulu langat district, selangor, malaysia.  - international journal of human and social sciences.  5(6):410-414. 

er ah choy, zalina che mat ariffin, joy jacqueline pereira.  (2010).  sosioekonomi masyarakat orang asli: kajian kes di hutan simpan bukit lagong, selangor, malaysia.  - jurnal melayu.  5:295-314. 

er ah choy.  (2010).  environmental care strategies and ecosystem health: case study of the manufacturing firms in langat river basin, malaysia.  - journal of sustainability science and management.  5(2) December 2010. 

sivapalan selvadurai, marlyna maros & er ah choy.  (2010).  competing discourses of globalization and interdependence.  - the 4th international malaysia-thailand conference on southeast asian studies (mahidol). 

mohd kamarulnizam abdullah, sivapalan selvadurai, er ah choy & marlyna maros.  (2010).  contemporary issues of education, development and security.  - 12:210-213. 

er ah choy, asmahani atan, rozata hod, saperi sulong, amrizal muhammad nur, hidayatulfathi othman, mazrura sahani.  (2010).  dengue fever and dengue haemorrhagic fever in hospital universiti kebangsaan malaysia (hukm), cheras, kuala lumpur, malaysia.  - 17th national public health colloqium. 

aishah@eshah haji mohamed, katiman rostam, abd. rahim mat nor, zaini sukimi, er ah choy dan hassan mat nor.  (2010).  gaya hidup penduduk sekitar wilayah iskandar johor..  - pertandingan poster penyelidikan fssk, 2010. 

kamarulnizam abdullah, sivapalan selvadurai, marlyna maros, er ah choy.  (2010).  contemporary issue of education, development and security.  - 13-22. 

er ah choy, rosniza aznie che rose, noordeyana tambi,
khalijah bte rejab, nadiah bte abdul halim, shahidah bte hamzah &
nurrul assyikeen bte jaffary.  (2010).  bio-kejuruteraan ekosistem dan spesies 2010 bukit fraser.  - 243-250. 

er ah choy, joy jacqueline pereira, halimaton saadiah hashim, mazrura sahani, hidayatul fathi othman, norela sulaiman, saperi sulong, amrizal muhammad nur, rozita hod, shamsul azhar shah, mohd talib.  (2010).  perubahan iklim dan kesihatan awam: impak dan intervensi.  - pertandingan poster penyelidikan dan pameran penerbitan fssk 2010. 

er ah choy, azima abdul manaf, suhana saad,khalijah rejab, nurul assyikeen md jaffary, nadiah abd halim, shahidah hamzah.  (2010).  bio-kejuruteraan penilaian ekosistem dan spesies 2010 bukit fraser.  - Bahagian 4 203-214. 

er ah choy, joy jacqueline pereira, halimaton saadiah hashim, mazrura sahani, hidayatul fathi othman, norela sulaiman, saperi sulong, amrizal muhammad nur, rozita hod, shamsul azhar shah, mohd talib.  (2010).  climate change and public health: impact and intervention.  - pertandingan poster penyelidikan dan pameran penerbitan fssk 2010. 

elviriadi, er ah choy, abd. rahim md. nor, mohd hood mohd salleh.  (2010).  application of indigenous and cultural knowledge for effectiveness local and societal development; case study of indigenous people in kampar regency riau province, indonesia.  - traditional knowledge conference 2010. 

md. shahin mia, rawshan ara begum, er ah choy, raja datuk zaharaton raja zainal abidin, joy jacqueline pereira.  (2010).  a literature review of the economic impacts of climate change on malaria.  - 2nd international conference on human habitat & environment. bangi: institute of the malay world and civilisation (atma), universiti kebangsaan malaysia.. 

saman imanifard, er ah choy.  (2010).  sustainable ecotourism development: case study of gilan province, iran.  - international graduate tourism research conference 2010. 

er ah choy.  (2010).  perubahan iklim dan kesihatan awam: impak dan intervensi.  - prosiding seminar pemantauan projek penyelidikan 2008, crim. 

er ah choy.  (2010).  contemporary issues of education, development & security.  - 89-128. 

er ah choy.  (2010).  the challenges facing the palm biofuel sector in malaysia.  - asian profile.  38(4):399-403. 

katiman rostam, er ah choy, zaini sakawi, abdul rahim mohd nor, aishah@esah mohamed.  (2010).  pembandaran di pinggir wilayah metropolitan lanjutan malaysia: beberapa implikasi terhadap kejiranan dari lembah klang-langat.  - geografia onlinetm malaysian journal of society and space.  (6):37-50. 

kamarulnizam abdullah, sivapalan selvadurai, marlyna maros & er ah choy.  (2010).  contemporary issues of education, development and security.  - 243. 

kamarulnizam abdullah, sivapalan selvadurai, marlyna maros & er ah choy.  (2010).  contemporary issues of education, development and security.  - Chapter 1 ; 13-22. 

er ah choy.  (2010).  politik, governans dan isu-isu lingkungan alam sekitar.  - 8:145-162. 

halima begum, er, a.c., a.s.a. ferdous alam, chamhuri siwar.  (2010).  economic sustainability ocf oil palm ultivations: smallholders perspective.  - the 5th international seminar of regional network on poverty eradication, vietnam.  55-56. 

jumaat h. adam, muhamad barzani gasim, zaini sakawi, er ah choy, zulfahmi ali rahman, noordeyana tambi, mohd afiq aizat juhari.  (2010).  biokejuruteraan penilaian ekosistem dan spesies 2010 bukit fraser: kesihatan persekitaran untuk kesejahteraan masa hadapan.  - 259. 

mazrura s, rozita hod, hidayatulfathi o, zainudin ma, mohamad naim mr, nadia atiqah mn, rafeah mn1, er ac , norela s, nurul ashikin z, joy jp.  (2010).  community vulnerability on dengue and its association with climate variability in malaysia: a public health approach.  - malaysian journal of public health medicine.  10(2):25-34. 

er ah choy.  (2010).  the nascent development of ecotourism in lagong hill.  - american journal of applied sciences.  7 (12): 1528-1531. 

er ah choy.  (2010).  contemporary issues of education, development and security.  - Chepter 8, 142-156. 

er ah choy.  (2009).  food or fuel: the challenges facing the palm biofuel sector in malaysia.  - unesco-ukm conference on politics of resources, human security and wellbeing, petaling jaya, selangor. 

er ah choy, muslihah mohamed, asmahani atan, abdul rahim md. nor, katiman rostam.  (2009).  dasar dan polisi pembangunan di wilayah iskandar johor terhadap alam sekitar.  - seminar dasar malaysia peringkat antarabangsa, sabah, malaysia. 

er ah choy, asmahani atan, mazrura sahani, nik muhammad nizam nik hassan, joy jacqueline pereira.  (2009).  perubahan iklim dan kesihatan manusia: metodologi bagi analisis impak sosioekonomi dan pengekosan.  - seminar dasar malaysia peringkat antarabangsa, sabah, malaysia. 

elviriadi, er ah choy, hood m. salleh dan abd. rahim md. nor.  (2009).  kearifan tradisional masyarakat kampar sebagai model pembangunan lestari.  - seminar unhas-ukm serumpun iv. 

er ah choy.  (2009).  environmental care strategies and ecosystem health: case study in langat basin.  - environmental science and technology conference 2009 dan terengganu, malaysia. 

joy jacqueline pereira, sarah aziz abd. ghani aziz, sharifah munirah syed alatas dan er ah choy.  (2009).  multi-stakeholder partnership for disaster risk reduction from national to local (3rd asian miniterial conference on disaster risk reduction 2-4 december 2008, kuala lumpur).  - 3rd asian miniterial conference on disaster risk reduction 2-4 december 2008, kuala lumpur. 

er ah choy, asmahani atan & mazrura sahani.  (2009).  perubahan iklim dan kesihatan manusia: survei pengkosan penyakit.  - bengkel halatuju penyelidikan perubahan iklim dan kesihatan awam, 27-29mac 2009. 

er ah choy, asmahani atan & mazrura sahani.  (2009).  perubahan iklim dan kesihatan manusia: metodologi dan senario penyakit bawaan-vektor..  - seminar unhas-ukm (serumpun iv): penelitian dunia melayu malaysia- indonesia. 

er ah choy & noor dina johari.  (2009).  bio-kejuruteraan & kelestarian ekosistem.  - 291-305. 

shahin mia, er ah choy, joy jacqueline pereira, raja datuk zaharaton raja zainal abidin, rawshan ara begum..  (2009).  economic impacts and vulnerability assessment of climate change on public health.  - journal of community health. special issues: 16th national public health colloquium.  15(Supplement 1):78. 

mazrura sahani, rozita hod, hidayatulfathi othman, zainudin mohd ali, er ah choy, norela sulaiman, mohamad naim mohamad rashidi, and nurul ashikin zainon.  (2009).  climate variability and impact on vector-borne diseases: assessment of community vulnerability, their responses and adaptive measures towards dengue in malaysia.  - journal of community health. special issues: 16th national public health colloquium.  15(Supplement 1):82. 

er ah choy, shahidah hamzah, nadiah bte abdul halim, khalijah rejab.  (2009).  pengusahaan hotel di tanah tinggi.  - sbesa09. 

er ah choy, sivapalan selvadurai, abdul hair awang, hamzah jusoh.  (2009).  jaringan strategik malaysia-indonesia dalam memperkasakan ekonomi dalam era global fakulti sains sosial dan pembangunan.  - diskusi panel pembangunan di dumai, riau. 

er ah choy.  (2009).  speech by co-chairperson er ah choy of ukm-ntu climate change and public health workshop.  - first ukm-ntu climate change and public health workshop. 

er ah choy, mazrura sahani, hidayatul fathi othman.  (2009).  research project: climate change and public health.  - first ukm-ntu climate change and public health workshop. 

hidayatul fathi othman, er ah choy, mazrura sahani.  (2009).  climate change adaptations for dengue fever in malaysia.  - first ukm-ntu climate change and public health workshop. 

er ah choy, asmahani atan, mazrura sahani.  (2009).  public lecture prof. chang-chuan chan (brosur).  - first ukm-ntu climate change and public health workshop. 

er ah choy.  (2009).  struktur dan pembangunan ekonomi d daerah kuala selangor.  - pengumpulan maklumat asas. 

er ah choy, katiman rostam, aishah@eshah hj. mohamed, zaini sakawi, & abd. rahim md. nor.  (2009).  pembangunan dan impak terhadap keselamatan dan kesejahteraan penduduk setempat: analisis jaringan di wilayah pembangunan iskandar johor.  - e-bangi, journal of social sciences and humanities.  4(1):84-94. 

er ah choy.  (2009).  kemampanan persekitaran klaster sawit: kajian kes di selangor.  - pengumpulan maklumat asas. 

ariff fahmi abu bakar, gary william theseira, saiful arif abdullah, er ah choy.  (2009).  assessment of potential land areas and cost-benefit analysis of a/reforestation cdm projects in peninsular malaysia.  - seminar penilaian dan pemantauan projek ke-9. 

er ah choy.  (2009).  climate change and public health: impacts and intervention.  - workshop on climate change and public health: impacts and intervention. 

er ah choy, joy jacqueline pereira, mazrura sahani, hidayatul fathi othman and lokman hakim sulaiman.  (2009).  climate change and human health: impacts and intervention in malaysia.  - first ukm-ntu climate change & public health workshop. 

mazrura sahani, er ah choy.  (2009).  malaysia: health effects in malaysia.  - workshop of eria research project on "project toward the "sustainable automobile society" in east asia". 

er ah choy.  (2009).  laporan prestasi gup perubahan iklim dan kesihatan awam.  - pengumpulan maklumat asas. 

zaini sakawi, asmah ahmad, er ah choy, maimon abdullah, rosniza aznie che rose, norhayati ahmad.  (2009).  bukit fraser crown of the titiwangsa range.  - 5 dan 67-77. 

ravichandran moorthy and er ah choy.  (2009).  unesco-ukm conference on politics of resources, human security & wellbeing: abstracts (penyunting).  - 20. 

er ah choy, mazrura sahani, hidayatul fathi othman, rozita hod.  (2009).  first ukm-ntu climate change & public health workshop.  - first ukm-ntu climate change & public health workshop. 

joy jacqueline pereira, er ah choy.  (2009).  research in climate change.  - bengkel halatuju perubahan iklim dan kesihatan awam. 

er ah choy.  (2009).  climate change and public health: methodological challenges.  - bengkel halataju perubahan iklim dan kesihatan awam. 

er ah choy.  (2009).  climate change and public health: impact and intervention.  - workshop on data management and analysis for research in health sciences. 

mazrura sahani & er ah choy.  (2009).  health impact assessment in malaysia: past and present experiences and future direction.  - 10th international conference on health impact assessment. 

mazrura sahani, er ah choy.  (2009).  workshop of eria research project.  - workshop of eria research project on "project toward the sustainable automobile industry in east asia, japan. 

er ah choy, elainie mohd khair, shahidah hamzah, nursalihah ismail.  (2009).  perubahan iklim dan kesihatan manusia: impak dan intervensi.  - poster penyelidikan: karnival siswazah antarabangsa. 

er ah choy, asmahani atan, mazrura sahani.  (2009).  laporan selepas mengadakan bengkel halatuju perubahan iklim dan kesihatan awam.  - pengumpulan maklumat asas. 

er ah choy.  (2009).  prestasi alam sekitar rantaian industri tekstil dan pakaian di malaysia: faktor dorongan daripada perspektif pemodenan ekologi.  - geografia malaysian journal of society and space.  5(3):44-56. 

er ah choy.  (2009).  geografia.  - prestasi alam sekitar rantaian industri tekstil dan pakaian di malaysia: faktor dorongan daripada perspektif pemodenan ekologi.  (3): 44-56. 

er ah choy.  (2009).  perubahan iklim dan kesihatan awam: survei pengekosan penyakit.  - pengumpulan maklumat asas. 

er ah choy, asmahani atan, nur salihah kassim dan mazrura sahani.  (2009).  metodologi kuantitatif untuk komputasi impak sosio-ekonomi perubahan iklim terhadap kesihatan manusia.  - first ukm-ntu climate change & public health workshop. 

er ah choy, asmahani atan, mazrura sahani.  (2009).  perubahan iklim dan kesihatan manusia: metodologi dan senario penyakit bawaan-vektor.  - first ukm-ntu climate change & public health workshop. 

mazrura sahani, er ah choy, hidayatul fathi othman.  (2009).  air pollution health risks to inpatient morbidity in klang valley, malaysia.  - first ukm-ntu climate change & public health workshop. 

er ah choy.  (2009).  ucapan aluan bengkel halatuju penyelidikan perubahan iklim dan kesihatan awam.  - bengkel halatuju penyelidikan perubahan iklim dan kesihatan awam. 

er ah choy.  (2009).  kemampanan persekitaran rantaian sawit di malaysia.  - dialog meja bulat jaringan strategik indonesia-malaysia ke arah memeperkasakan perdagangan, perkhidmatan dn kepenggunaan, riau, indonesia. 

katiman rostam, er ah choy, zaini sakawi, abd. rahim md. nor.  (2009).  pembandaran di pinggir wilayah metropolitan lanjutan: beberapa implikasi terhadap corak kejiranan.  - international conference on social sciences and humanities (icosh09). 

er ah choy, melasutra md. dali, katiman rostam, abd. rahim md. nor.  (2009).  the evolution and the changing faces of kuala lumpur.  - prosiding asia-pacific metropolitan development forum 2008, pudong, shanghai, 2-4 november 2008. 

er ah choy, asmahani atan, muslihah mohamed, katiman rostam, abd. rahim md. nor.  (2009).  pembangunan di wilayah pembangunan iskandar (wpi), johor dan impak terhadap kesejahteraan masyarakat setempat.  - international conference on social sciences and humanities (icosh09). 

zaini s., asmah a., er a.c., maimon a., rosniza aznie c.r., norhayati a..  (2009).  bukit fraser crown of the titiwangsa.  - 67-77. 

er ah choy, rosniza aznie c.r., noordeyana t..  (2009).  pengurusan alam sekitar oleh pengusaha hotel di kawasan tanah tinggi: kajian kes di bukit fraser.  - seminar bio-kejuruteraan penilaian ekosistem & spesies 2009. 

azima abdul manaf, er ah choy, suhana saad, aznie rosniza dan noordeyana.  (2009).  prospek dan kemajuan bukit fraser sebagai destinasi ekopelancongan.  - seminar biokejuruteraan, penilaian ekosistem dan spesies 2009. 

er ah choy, nur salihah kassim, asmahani atan.  (2009).  pembangunan ekonomi desa di provinsi riau.  - international conference on social sciences and humanities (icosh09). 

er ah choy, raja datuk zaharaton raja zainal abidin, joy jacqueline pereira.  (2009).  a critical analysis of sustainable development in bukit lagong forest reserve, selangor.  - persidangan kebangsaan penilaian ekonomi sumber hutan, jabatan perhutanan semenanjung malaysia dan upm, kuala lumpur, malaysia. 

er ah choy, asmahani atan, mazrura sahani, hidayatul fathi othman, lokman hakim sulaiman, saperi sulong, amrizal muhammad nur, joy jacqueline pereira.  (2009).  climate change and dengue: a methodological framework for socio-economic impact and costing.  - 4th international case-mix conference malaysia 2009, kuala lumpur, malaysia. 

er ah choy, khalijah rejab, nurrul assyikeen jaffary, nadiah abdul halim, shahidah hamzah.  (2009).  persepsi pelancong terhadap tarikan pelancongan di bukit fraser, pahang..  - seminar bio-kejuruteraan, penilaian ekosistem dan spesies 2009, pahang, malaysia. 

er ah choy.  (2009).  polisi dan kerangka institusi berkaitan alam sekitar dalam rantaian sawit di malaysia..  - seminar dasar malaysia peringkat antarabangsa, sabah, malaysia. 

er ah choy.  (2008).  cost-benefit analysis for bukit lagong, selangor.  - bengkel jaminan mineral (6 mac 2008). 

er ah choy.  (2008).  daya maju ekonomi di hutan simpan : satu analisis kos-faedah di hutan simpan bukit lagong, selangor.  - pengumpulan maklumat asas. 

zalina che mat ariffin, er ah choy, joy jacqueline pereira.  (2008).  analisis sosio-ekonomi orang asli di bukit lagong: kajian kes di hutan simpan bukit lagong, selangor.  - prosiding icsdes 08. 

er ah choy.  (2008).  rantaian tekstil dan pakaian di malaysia: faktor dorongan prestasi alam sekitar daripada perspektif pemodenan ekologikal.  - prosiding international conference on social, development and environmental studies: global changes and transforming spaces. 

er ah choy.  (2008).  methods in the assessment of socio-economic impacts of climate change on public health.  - workshop for working group on vulnerability and adaptation, second national communication (nc2), awana genting hotel, malaysia. 

er ah choy.  (2008).  dinamika sosial, pembangunan dan persekitaran di malaysia.  - 6 dan 102-123. 

abd. rahim md. nor and er ah choy.  (2008).  assessing transport impacts in social impact assessment (sia) in malaysia: current practice and future challenges..  - asean seminar on social impact assessment (sia) in the asean region: enhancement of sia practices towards sustainable communities, ministry of women, family and com. devt n masia. 

zalina che mat ariffin, er ah choy dan joy jacqueline pereira.  (2008).  analisis sosioekonomi masyarakat orang asli: kajian kes di hutan simpan bukit lagong, selangor.  - proceedings of the international conference on social, development and environmental studies: global changes and transforming spaces. 

er ah choy, katiman rostam, abdul rahim md nor.  (2008).  the evolution and the changing faces of kuala lumpur.  - proceedings of the asia pacific metropolitan development forum, pudong, shanghai, china (diterbitkan oleh auckland university of technology, celap, ecust, china). 

er ah choy.  (2008).  pemodenan ekologikal di rantaian tekstil dan pakaian di malaysia.  - proceedings of the international conference on social, development and environmental studies; global changes and transforming spaces, bangi, selangor, malaysia, 18-19 november 2008, danau club, ukm. 

tan ching tiong, er ah choy, koh fui pin, rawshan ara begum.  (2008).  laporan second national conference on extreme weather and climate change; understanding science and risk reduction.  -

er ah choy.  (2008).  taking the environmental high road: the malaysian oil palm and palm oil sector.  - asian profile.  36 (6). 

er ah choy, katiman rostam & abdul rahim md nor.  (2008).  the evolution and the changing faces of kuala lumpur.  - the asia pacific metropolitan development forum. 

er ah choy.  (2008).  baseline information on environmental health of peninsular malaysia.  - pengumpulan maklumat asas. 

er ah choy.  (2007).  a quantitative methodology to test ecological modernization theory in the malaysian context.  - phd thesis wageningen university, the netherlands. 

er ah choy.  (2007).  network embeddedness and environmental performance: an analysis of two case studies from the palm oil industry.  - psosiding icosh 07: innovating approaches: looking beyond conventionalities. 

chamhuri siwar, rawshan ara begum, er ah choy.  (2007).  managing construction waste in malaysia.  - Sec. 1 : 47-64. 

er ah choy.  (2007).  pengurusan alam sekitar di sektor kelapa sawit: analisis rangkaian.  - prosiding skim x: keselamatan insan nasional dan serantau: aspirasi dan realiti. 

er ah choy.  (2007).  environmental management in the oil palm and palm oil industry: the existing roadmap.  - the all china economics (ace) international conference. 

karim harun, marlyna maros, er ah choy, suhaimee saahar, mostafa kamal mokhtar.  (2007).  prosiding icosh 07(penyunting).  - prosiding icosh 07. 

er ah choy.  (2006).  ecological modernization theory and the malaysian palm oil production chain: the taste of the pudding.  - inref-agits international conference. the greening of agro-industries and networks in asia: challenges and opportunities. chulalongkorn university, bangkok, thailand.. 

er ah choy.  (2005).  masyarakat, perubahan dan pembangunan.  - 138-156(7). 

er ah choy.  (2002).  critical business environmental issues affecting the sabah wood-based industry.  - asian profile.  30(2):137-147. 

abdul halim ali, ishak shari, habibah ahmad, er ah choy.  (2000).  sabah dalam perluasan pasaran.  - 408.