firdaus mohamad hamzah, hazrina tajudin, othman jaafar.  (2021).  a comparative flood frequency analysis of high-flow between annual maximum and partial duration series at sungai langat basin.  - sains malaysiana.  1843-1856. 

muhammad amartur rahman bin zainal abidin;othman bin jaafar;khairul nizam abdul maulud;suriani binti shuhatdi;aslinda oon binti ridzuan oon;mohd firdaus bin shaharudin;mohamad shahril bin hussain;aniq rukaini bin mohd azmi;mohd aizat bin saiful bahri.  (2020).  sistem gis untuk pengurusan penyelanggaran infrastruktur: sistem perpaipan dan sistem bekalan elektrik di ukm bangi.  - .  . 

fatimah bibi hamzah, firdaus mohd hamzah, siti fatin mohd razali, othman jaafar and norhayati abdul jamil.  (2020).  imputation methods for recovering streamflow observation: a methodological review.  - cogent environmental science.  1-21. 

mohd aizat bin saiful bahri;othman bin jaafar;khairul nizam abdul maulud;adi irfan bin che ani;aslinda oon binti ridzuan oon;muhammad syahidi bin hasbullah;mohd za`im bin aziz;muhammad amartur rahman bin zainal abidin.  (2020).  pembangunan pangkalan data gis untuk pegurusan fasiliti: aset dan ruang bangunan ukm.  - .  . 

abdalla osman, haitham abdulmohsin afan, mohammed falah allawi, othman jaafar, aboelmagd noureldina, firdaus mohamad hamzah, ali najah ahmed, ahmed el-shafief.  (2020).  adaptive fast orthogonal search (fos) algorithm for forecasting streamflow.  - journal of hydrology.  1-17. 

jamal ali kawan, fatihah suja, hassimi abu hasan, othman jaafar and rakmi abd rahman.  (2020).  development of malaysian wastewater polishing index: case study on a moving bed biofilm reactor.  - journal of ecological engineering.  1-8. 

firdaus bin mohamad hamzah;sharifah mastura bt. syed abdullah;othman bin jaafar.  (2020).  an integrated statistical data-driven analysis for flood frequency, discharge and water stage..  - .  . 

farahani mohd saimi, firdaus mohamad hamzah, mohd ekhwan toriman, othman jaafar, hazrina tajudin.  (2020).  trend and linearity analysis of meteorological parameters in peninsular malaysia.  - sustainability.  1-19. 

muhammad aqiff abdul wahid, khairul nizam abdul maulud, mohd aizat saiful bahri, muhammad amartur rahman, othman jaafar.  (2019).  geospatial cloud technologies advancement in infrastructure asset management.  - proceedings of ipi research colloquium 2018.  29-32. 

mohammed falah allawi, othman jaafar, firdaus mohamad hamzah, suhana binti koting, nuruol syuhadaa binti mohd, ahmed el-shafie.  (2019).  forecasting hydrological parameters for reservoir system utilizing artificial intelligent models and exploring their influence on operation performance.  - knowledge-based systems.  . 

fatihah binti suja`;othman bin jaafar;shahrom binti md zain;siti fatin binti mohd razali.  (2019).  productivity enhancement of a stepped solar still for green seawater desalination.  - .  . 

norsyafina binti roslan;nik hairi bin omar;othman bin jaafar;mohd suzeren bin md jamil;muhammad rahimi bin yusop;lee jing;aznan fazli bin ismail;nor shahidah binti mohd nazer.  (2019).  groundwater as an alternative water sources in ukm: addressing the issues before, during and after.  - .  . 

siti fatin binti mohd razali;othman bin jaafar.  (2019).  low flow characteristics for rivers in selangor state region.  - .  . 

mohammed falah allawi, othman jaafar, firdaus mohamad hamzah, ahmed el-shafie.  (2019).  novel reservoir system simulation procedure for gap minimization between water supply and demand.  - journal of cleaner production.  . 

firdaus mohamad hamzah, siti hawa mohd yusoff & othman jaafar.  (2019).  l-moment-based frequency analysis of high-flow at sungai langat, malaysia.  - sains malaysiana.  1357-1366. 

mitra shahsavar, noor ezlin ahmad basri, behzad nadi, othman jaafar.  (2019).  selection of impactful environmental parameters using an integrated community feedback system for environmental assessment.  - international journal of engineering & technology.  89-95. 

siti norsakinah selamat, khairul nizam abdul maulud, othman jaafar.  (2019).  quantitative analysis of shoreline changes at selangor coast.  - proceedings of ipi research colloquium 2018.  37-41. 

ang wei lun;abdul wahab bin mohammad;ahmad sunawari bin long;othman bin jaafar;mohamad hanif bin md saad;muhamad alias bin md. jedi.  (2019).  smart metering for sustainable water use, management and infrastructure planning via big data analytics.  - .  . 

abdul aziz ab rahman, khairul nizam abdul maulud, othman jaafar.  (2019).  monitoring coastal changes using geospatial techniques.  - proceedings of ipi research colloquium 2018.  25-28. 

nur shazwani binti muhammad;othman bin jaafar;firdaus bin mohamad hamzah;ahmed hussein kamel ahmed nasser elshafie.  (2018).  return period and risk of droughts in penisular malaysia.  - .  . 

mohammed falah allawi, othman jaafar, mohammad ehteram, firdaus mohamad hamzah, ahmed el-shafie.  (2018).  synchronizing artificial intelligence models for operating the dam and reservoir system.  - water resources management.  3373-3389. 

mohammed falah allawi, othman jaafar, firdaus mohamad hamzah, sharifah mastura syed abdullah, ahmed el-shafie.  (2018).  review on applications of artificial intelligence methods for dam and reservoir-hydro-environment models.  - environmental science and pollution research.  . 

norhamidi muhamad, khairul nizam abdul maulud , ahmad abas kutty, mohd ekhwan hj. toriman, wan juliana wan ahmad , shahrir abdullah, mohd. hasni jaafar, nor ghani md nor, wan zuhairi wan yaacob, jasni yaakub, othman jaafar, maimon abdullah & md pauzi.  (2018).  the proposed nenggiri hydroelectric project, jajahan gua musang, kelantan darul naim.  - .  . 

muhammad aqiff abdul wahid, khairul nizam abdul maulud, muhammad amartur rahman, mohd aizat saiful bahri, and othman jaafar.  (2018).  integrated infrastructure management using web-gis application.  - proceedings of the pakistan academy of sciences: a. physical and computational sciences.  35-44. 

khairul nizam abdul maulud, mohd tareeq mazlan, othman jaafar.  (2018).  applicability of unmanned aerial vehicle (uav) for safety inspection on construction sites.  - 6th international technical conference 2018.  . 

khairul nizam abdul maulud, nur faaiqah binti zainol, siti norsakinah selamat, othman jaafar.  (2018).  shoreline changes using geo-statistical analysis for selangor coastal area.  - 6th international technical conference 2018.  . 

muhammad aqiff abdul wahid, khairul nizam abdul maulud, muhammad amartur rahman, mohd aizat saiful bahri, and othman jaafar.  (2018).  integrated infrastructure management using web-gis application.  - proceedings of the pakistan academy of sciences: a. physical and computational sciences.  35-44. 

khairul nizam abdul maulud, othman bin jaafar,sharifah mastura bt. syed abdullah, othman bin a. karim, wan hanna melini binti wan mohtar, abdul aziz bin ab rahman, siti norsakinah selamat.  (2018).  impact on coastal development due to the shoreline changes.  - national seminar on coastal morphology (cosmo) 2018.  . 

sudharshan naidu a/l raman;muhammad fauzi bin mohd. zain;othman bin jaafar;azrul bin a mutalib;maslina binti jamil.  (2018).  an engineering performance based building information modeling (ep-bim) system for efficient monitoring, management and maintenance of ukm facilities and infrastructures.  - .  . 

othman jaafar, khairul nizam abdul maulud, ahmad abas kutty, talib latif, azl i arifin, amiruddin ismail, wan zuhairi wan yaacob & fikri mohd sani.  (2018).  the proposed putrajaya bangi expressway.  - .  . 

mohammed falah allawi & othman jaafar & firdaus mohamad hamzah, nuruol syuhadaa mohd & ravinesh c. deo & ahmed el-shafie.  (2018).  reservoir inflow forecasting with a modified coactive neuro-fuzzy inference system a case study for a semi-arid region.  - theoretical applied climatology.  545-563. 

siti norsakinah selamat, khairul nizam abdul maulud & othman jaafar.  (2018).  assessing of shoreline changes by using geospatial technique.  - proceedings of ipi research colloquium 2017.  12-15. 

muhammad aqiff abdul wahid, khairul nizam abdul maulud, mohd aizat saiful bahri, muhammad amartur rahman & othman jaafar.  (2018).  gis-integrated infrastructure asset management system.  - proceedings of ipi research colloquium 2017.  7-11. 

abdul aziz ab rahman, khairul nizam abdul maulud & othman jaafar.  (2018).  possibility of uav application to monitor shoreline changes.  - proceedings of ipi research colloquium 2017.  1-3. 

khairul nizam abdul maulud, fazly amri mohd, wan hanna melini wan mohtar, othman jaafar & yannie anak benson.  (2018).  space science and communication for sustainability.  - .  12. 

aimi nadira mohd safiea, khairul nizam abdul maulud, othman jaafar, wan shafrina wan mohd jaafar, abdul aziz ab rahman, faiz arif, muhammad mukhlisin.  (2018).  auditing road maintenance work using unmanned aerial vehicle.  - jurnal kejuruteraan (journal of engineering).  23-27. 

khairul nizam abdul maulud , mohd tareeq mazlan & othman bin jaafar.  (2018).  applicability of unmanned aerial vehicle (uav) for safety inspection on construction sites.  - international technical conference 2018 (itc 2018).  . 

khairul nizam abdul maulud, nur faaiqah zainol, siti norsakinah selamat & othman bin jaafar.  (2018).  shoreline changes using geo-statistical analysis for selangor coastal area.  - international technical conference 2018 (itc 2018).  . 

madihah mohd azharn, khairul nizam abdul maulud, siti norsakinah selamat, md firoz khan, othman jaafar, wan shafrina wan mohd jaafar, sharifah mastura syed abdullah, mohd ekhwan toriman, mohd khairul amri kamarudin, muhammad barzani gasim, hafizan juahir.  (2018).  impact of shoreline changes to the coastal development.  - international journal of engineering & technology (uae).  . 

sharifah mastura syed abdullah, khairul nizam abdul maulud, syarina md shah, wan shafrina wan mohd jaafar, nor ghani md. nor, othman jaafar & wan juliana wan ahmad.  (2018).  identification of degradation areas in perak and kedah through geospatial imagery database.  - yh board of trustees retreat.  . 

mohammed falah allawi, othman jaafar, firdaus mohamad hamzah, mohammad ehteram, md. shabbir hossain, ahmed el shafie.  (2018).  operating a reservoir system based on the shark machine learning algorithm.  - environmental earth sciences.  1-14. 

najwa zainal , firdaus mohammad hamzah & othman jaafar.  (2017).  frequency of rainy days as one of parameter changes in rainfall behavior.  - international journal of applied engineering research.  11062-11067. 

othman jaafar, md pauzi ahmad, khairul nizam abd maulud, firdaus hamzah, rozaimi, zaidi che cob, wan juliana, zaini sakawi, rosniza aznie, yusof, lam kuok choy, syarina, azizah, norhayati ahmad, wan lotfi,khirunnisa mazelan,.  (2017).  program data alam sekitar di sepanjang selat johor dan sekitar batuan tengah dan tubir selatan (interim 3).  - pintar - ukm sustainabili.  . 

s n selamat , k n abdul maulud, o jaafar and h ahmad.  (2017).  extraction of shoreline changes in selangor coastal area using gis and remote sensing techniques.  - journal of physics: conference series.  1-9. 

norsyafina roslan & othman jaafar.  (2017).  how detailed geological observation during drilling helps to understand the aquifer behavior.  - 30th national geoscience conference & exhibition.  . 

nur shazwani muhammad,aina izzati md.rashid, othman jaafar, md. pauzi abdullah, khairul nizam abdul maulud & shahrom md. zain.  (2017).  simulation of drinking water quality in distribution system ..  - innovate : faculty of engineering and built environment.  33-34. 

othman jaafar, rosniza ramli, ahmad abas kutty, zaki zainuddin & zaini sakawi.  (2017).  the proposed upgrading works for kuala sawah regional sewage treatment plants (sen330), seremban, negeri sembilan.  - .  . 

firdaus mohamad hamzah*, othman jaafar, muhammad imran mohd junaidi & azrul a. mutalib.  (2017).  temporal analysis of water quality in the straits of johor.  - jurnal kejuruteraan.  63-67. 

firdaus mohamad hamzah, farahani mohd saimi & othman jaafar.  (2017).  identifying the monotonic trend in climate change parameter in kluang and senai, johor, malaysia.  - sains malaysiana.  1735-1741. 

siti norsakinah selamat, khairul nizam abdul maulud & othman jaafar.  (2017).  automatic computation approach for measuring the shoreline changes.  - proceedings of the tuanku ja afar conference (tjc) 2017.  . 

abdul aziz ab rahman, khairul nizam abdul maulud & othman bin jaafar.  (2017).  detection of shoreline changes using uav approach.  - proceedings of the tuanku ja afar conference (tjc) 2017.  . 

abdul aziz ab rahman, khairul nizam abdul maulud, fazly amri mohd, othman jaafar and khairul nizam tahar.  (2017).  volumetric calculation using low cost unmanned aerial vehicle (uav) approach.  - iop conference proceedings series: materials science and engineering.  1-7. 

mastura mahmud, nurul akmar, rakmi abd rahman, abd. ghani md. rafek, abdul amir h. kadhum, sharifah mastura syed abdullah, abu bakar mohamad, adi lrfan che ani, mokhtar jaafar, zaini sakawi, md. pauzi abdullah, othman jaafar , khairul nizam abdul maulud.  (2017).  kuala lumpur`s carbon footprint.  - faseh : faculty of social sciences and humanities.  108-109. 

abdul razak hamdan, azuraliza abu bakar, zalinda othman, sharifah mastura syed abdullah & othman jaafar.  (2016).  nature inspired text based structure modeling approach for signature detection in weather prediction problem.  - pintar - ukm sustainabili.  . 

almahdi alshareef, azuraliza abu bakar, abdul razak hamdan, sharifah mastura syed abdullah & othman jaafar.  (2016).  emerging trends and advanced technologies for computational intelligence.  - .  18. 

firdaus mohammad hamzah, najwa zainal and othman jaafar.  (2016).  daily precipitation concentration index in bangi, malaysia.  - international journal of applied environmental sciences.  1537-1548. 

nur akmal abdullah goh, mohd. marzuki mustapha, abd. wahab mohammad, othman jaafar, siti fatin mohd razali, azrul a. mutalib, wan aizon wan ghopa, zambri harun [and (seven) others].  (2016).  laporan akhir rintis program inisiatif libat sama (pilbs).  - .  87. 

alshareef a., bakar a.a., hamdan a.r., abdullah s.m.s., jaafar o..  (2016).  sequential pattern discovery for weather prediction problem.  - studies in computational intelligence.  223-240. 

f.m. hamzah, o. jaafar, w.n.f.a. jani and s.m.s. abdullah.  (2016).  multivariate analysis of physical and chemical parameters of marine water quality in the straits of johor, malaysia.  - journal of environmental science and technology.  427-436. 

nur akmal abdullah goh, mohd. marzuki mustapha, abd. wahab mohammad, othman jaafar, siti fatin mohd razali, azrul a. mutalib, wan aizon wan ghopa, zambri harun, shahrizan bin baharom, norliza abd. rah.  (2016).  manual pengurusan projek kementerian pendidikan malaysia program inisiatif libat sama (pils).  - .  49. 

othman jaafar, pauzi abdullah, zaidi che cob, zaini sakawi, lam kuok choy, rosniza aznie, khairul nizam abdul maulud, wan juliana wan ahmad & firdaus hamzah.  (2016).  program data alam sekitar di sepanjang selat johor dan sekitar batuan tengah dan tubir selatan (interim 2).  - environmental impact asse.  . 

ibrahim, a., mukhlisin, m., jaafar, o., & taha, m.r..  (2016).  study the effect of rainfall infiltration into unsaturated soil using electrical capacitance volume tomography (ecvt).  - australian journal of basic and applied sciences.  66-72. 

jamal ali kawan, hassimi abu hasan, fatihah suja`, othman bin jaafar, rakmi abd-rahman.  (2016).  a review on sewage treatment and polishing using moving bed bioreactor (mbbr).  - journal of engineering science and technology.  1098-1120. 

shahrom md zain, othman jaafar, roszilah hamid, noor ezlin ahmad basri, wan hamidon wan badaruzzaman, wan hanna melini wan mokhtar, azrul abdul mutalib, amiruddin ismail.  (2016).  penambahbaikan kualiti berterusan dalam pengajaran dan pembelajaran di jabatan kejuruteraan awam & struktur.  - prosiding peka 2015.  177-189. 

almselati a.s.i., rahmat r.a.b.o.k., jaafar o., yahia h.a.m..  (2015).  using spike model to reduce traffic congestion and improve public transportation in malaysia.  - transportation research part d: transport and environment.  59-66. 

atta m., yaacob w.z.w., jaafar o.b..  (2015).  the potential impact of leachate-contaminated groundwater of an ex-landfill site at taman beringin kuala lumpur, malaysia.  - environmental earth sciences.  3913-3923. 

sharifah mastura syed abdullah, khairul nizam abdul maulud, othman jaafar, syarina md sah.  (2015).  senario dan implikasi aktiviti penambakan laut di semenanjung malaysia.  - .  65. 

pauzi abdullah, sharifah mastura syed abdullah, othman jaafar, mastura mahmud, wan mohd afiq wan mohd khalik.  (2015).  characterization of spatial and temporal variability in hydrochemistry of johor straits, malaysia.  - marine pollution bulletin.  378-385. 

almahdi alshareef, azuraliza abu bakar,abdul razak hamdan, sharifah mastura syed abdullah,othman jaafar.  (2015).  pattern discovery algorithm for weather prediction problem.  - science and information conference 2015.  . 

sh mastura syed abdullah, othman jaafar, norghani md nor & khairul nizam abdul maulud.  (2015).  national coastal erosion study (interim 1).  - .  . 

sh mastura, othman jaafar, khairul nizam abdul maulud, norghani.  (2015).  national coastal erosion study (laporan interim 3).  - carbon dioxide reduction.  . 

othman jaafar, pauzi ahmad, firdaus hamzah, khairul nizam abd maulud, zaini sakawi,lam kuok choy, zaidi che cob, wan juliana, rosniza aznie.  (2015).  program data alam sekitar di sepanjang selat johor dan sekitar batauan tengah dan tubir selatan (laporan interim 1).  - environmental impact asse.  . 

othman jaafar, md pauzi ahmad, khairul nizam abd maulud, firdaus hamzah, rozaimi, zaidi che cob, wan juliana, zaini sakawi, rosniza aznie, yusof, lam kuok choi, syarina, azizah, norhayati ahmad, wan lotfi,khirunnisa mazelan,.  (2015).  program data alam sekitar di sepanjang selat johor dan di sekitar batuan tengah & tubir selatan (laporan awal/inception).  - environmental impact asse.  . 

sh mastura syed abdullah, khairul nizam abdul maulud, othman jaafar.  (2015).  national coastal erosion study for malaysia (interim 2).  - .  . 

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. 

mustapha atta, wan zuhairi wan yaacob, othman jaafar.  (2015).  steady state groundwater flow modeling of an ex-lanfill site in kuala lumpur, malaysia.  - american journal of environmental sciences.  348-357. 

shahrom md zain, noor ezlin ahmad basri, hassan basri, wan hamidon wan badaruzzaman, othman jaafar, fatihah suja, mohd raihan taha & wan hanna melini wan mokhtar.  (2015).  pendidikan alam sekitar dan pembangunan lestari dalam pendidikan kejuruteraan: apa kata pelajar?.  - k-novasi pengajaran dan pembelajaran ukm (pendidikan kejuruteraan dan alam bina) peka 2014 ukm.  1-16. 

shahrom md zain, nur ajlaa mahmood, noor ezlin ahmad basri, hassan basri, wan hamidon wan badaruzzaman, othman jaafar, fatihah suja, mohd raihan taha, wan hanna melini wan mokhtar.  (2015).  environmental education and sustainable development in engineering field.  - journal of engineering science and technology.  23-32. 

jamal ali kawan, rakmi abd-rahman, othman jaafar and fatiha suja`.  (2015).  polishing of chemical oxygen demand (cod) using moving bed bioreactor.  - applied mechanics and materials.  1281-1285. 

mastura mahmud, sharifah mastura syed abdullah, othman jaafar, sahibin @ sahibini abd rahim, mokhtar jaafar, zaini bin sakawi, alit merang @ mohd azlan bin abdullah.  (2015).  upgrading of weather instruments at the sime darby plantations.  - penghasilan manuskrip has.  . 

zaher mundher yaseen, ahmed el shafie, othman jaafar, haitham abdulmohsin afan and khamis naba sayl.  (2015).  artificial intelligence based models for stream-flow forecasting: 2000-2015.  - journal of hydrology.  829 - 844. 

a. m. ahmed, azuraliza abu bakar, abdul razak hamdan, sharifah mastura syed abdullah, othman jaafar.  (2015).  sequential pattern discovery algorithm for malaysia rainfall prediction.  - acta physica polonica a.  324-326. 

mustapha atta, wan zuhairi wan yaacob, othman jaafar, zaini sakawi.  (2014).  ammoniacal nitrogen contaminated groundwater at taman beringin ex-landfill site: implication to health and the environment.  - advances in environmental biology.  136-142. 

shahrom md zain, noor ezlin ahmad basri, hassan basri, wan hamidon wan badaruzzaman, othman jaafar, fatihah suja, mohd raihan taha & wan hanna melini wan mokhtar.  (2014).  pendidikan alam sekitar dan pembangunan lestari dalam bidang kejuruteraan: kajian tinjauan.  - seminar pendidikan kejuruteraan dan alam bina (peka 2013) / pusat penyelidikan kejuruteraan, fkab, ukm..  . 

nariman valizadeh, ahmed el-shafie, majid mirzaei, hadi galavi, muhammad mukhlisin and othman jaafar.  (2014).  accuracy enhancement for forecasting water levels of reservoirs and river streams using a multiple-input-pattern fuzzification approach.  - the scientific world journal.  2014:Article ID 432976. 

mohammad dorofki, ahmed h. elshafie, othman jaafar, othman a. karim, sharifah mastura syed abdullah.  (2014).  a gis-ann-based approach for enhancing the effect of slope in the modified green-ampt model.  - water resource management.  28(2):391-406. 

reshminder kaur harpal singh & othman jaafar.  (2014).  effectiveness of moringa against alum as a coagulant.  - international technical conference.  . 

norbahiah misran, zahira yaacob, siti kartom kamaruddin, wardah fatimah, shahrum abdullah, abu bakar sulong, ahmad ashrif a. bakar, amiruddin ismail, wan mimi diyana, othman jaafar, farizah ansarudin, azhari shamsudeen, mohd huzairi johari.  (2014).  jurnal kejuruteraan.  - jurnal kejuruteraan.  1-96. 

aniza ibrahim, muhammad mukhlisin, othman jaafar.  (2013).  numerical assessment of rainfall infiltration into soil column for the unsaturated layered residual forest soil.  - jurnal teknologi (sciences & engineering).  65(2):121-127. 

seyed ahmad akrami, ahmed el-shafie, othman jaafar.  (2013).  improving rainfall forecasting efficiency using modified adaptive neuro-fuzzy inference system (manfis).  - water resources management.  27(9):3507-3523. 

norbahiah misran, zahira yaacob, siti kartom kamaruddin, shahrum abdullah, abu bakar sulong, amiruddin ismail, othman jaafar, wardah fatimah mohd yusoff, ahmad ashrif a. bakar, wan mimi diyana wan zaki, farizah ansarudin, mohd fairus awang, arif mohd sham.  (2013).  jurnal kejuruteraan.  - jurnal kejuruteraan.  1-45. 

salem alzahrani, abdul wahab mohammad, nidal hilal, pauzi abdullah, othman jaafar.  (2013).  identification of foulants, fouling mechanisms and cleaning efficiency for nf and ro treatment of produced water.  - separation and purification technology.  118:324-341. 

sabah s. fayaed, ahmed el-shafie, othman jaafar.  (2013).  reservoir-system simulation and optimization techniques.  - stochastic environmental research and risk assessment.  27:1751-1772. 

sabah s. fayaed & ahmed el-shafie & othman jaafar.  (2013).  integrated artificial neural network (ann) and stochastic dynamic programming (sdp) model for optimal release policy.  - water resources management.  27(10):3679-3696. 

salem alzahrani, abdul wahab mohammad, pauzi abdullah, othman jaafar.  (2013).  potential tertiary treatment of produced water using highly hydrophilic nanofiltration and reverse osmosis membranes.  - journal of environmental chemical engineering.  1:1341-1349. 

hossein shamsaei, othman jaafar and noor ezlin ahmad basri.  (2013).  effects of water age blind spots on the water quality in the water distribution systems with the use of epanet model.  - research journal of applied sciences, engineering and technology.  5(14):3751-3760. 

salem alzahrani, a.w. mohammad, n. hilal, pauzi abdullah, othman jaafar.  (2013).  comparative study of nf and ro membranes in the treatment of produced water-part i: assessing water quality.  - desalination.  315:18-26. 

hossein shamsaei, othman jaafar and noor ezlin ahmad basri.  (2013).  effects velocity changes on the water quality in water distribution systems.  - research journal of applied sciences, engineering and technology.  5(14):3783-3790. 

hossein shamsaei, othman jaafar, noor ezlin ahmad basri.  (2013).  disadvantage pressure changes on the decline of water quality in water distribution systems.  - engineering.  5:97-105. 

zaini sakawi, lukman ismail, noor khafazilah abdullah, s. a. sharifah mastura, othman jaafar.  (2013).  the influence of distance and atmospheric elements on the concentration of odour from refuse derived fuel (rdf) operations.  - research journal of applied sciences, engineering and technology.  6(14):2630-2633. 

zaini sakawi, sharifah mastura s.a., othman jaafar, mastura mahmud, mohd rozaimi ariffin, lukman ismail.  (2013).  pencemaran bau dari operasi tapak pelupusan secara terbuka.  - prosiding seminar serantau ke-2 pengurusan persekitaran di alam melayu / institut alam dan tamadun melayu (atma).  . 

salem alzahrani, a w. mohammad, n. hilal, pauzi abdullah, othman jaafar.  (2013).  comparative study of nf and ro membranes in the treatment of produced water ii : toxicity removal efficiency.  - desalination.  315:27-32. 

hossein shamsaei, othman jaafar, noor ezlin ahmad basri.  (2013).  effect residence time to water quality in large water distribution systems.  - engineering.  5:449-457. 

noor ezlin ahmad basri, shahrom md zain, othman jaafar, hassan basri, fatihah suja.  (2012).  introduction to environmental engineering: a problem-based learning approach to enhance environmental awareness among civil engineering students.  - procedia social and behavioral science - ukm teaching and learning congress 2011.  . 

zaini sakawi, s.a. sharifah mastura, mohd rozaimi ariffin, lukman ismail, othman jaafar.  (2012).  analysis of heavy metal concentration in the vicinity of a landfill site.  - research jurnal of applied sciences.  349-353. 

shahrom md zain, wan hamidon wan badaruzzaman, riza atiq o.k rahmat, othman jaafar, noor ezlin ahmad basri & hassan basri.  (2012).  learning outcomes for environmental and sustainable development component in the field of civil engineering.  - asian social science.  8(16):153-162. 

ali a. najah, a. el-shafie, o. a. karim and o. jaafar.  (2012).  water quality prediction model utilizing integrated wavelet-anfis model with cross-validation.  - neural computing & applications.  21(5): 833-841. 

muhammad mukhlisin, aniza ibrahim, othman jaafar, siti fatin mohd razali.  (2012).  electrochemical assessment of water quality as an effect of construction.  - international journal of electrochemical science.  7(2012):5457 - 5466. 

shahrom md zain, wan hamidon wan badaruzzaman, riza atiq o.k rahmat, othman jaafar, noor ezlin ahmad basri & hassan basri.  (2012).  learning outcome measurement for environmental and sustainable development component in the field of civil engineering.  - procedia social and behavioral science.  . 

mohd. rozaimi ariffin, zaini sakawi, sharifah mastura s.a., othman jaafar.  (2012).  isu dan cabaran operasi loji rawatan sisa kumbahan (wtp) ke atas pencemaran bau.  - prosiding persidangan antarabangsa sains sosial dan kemanusiaan (icosh), fssk, ukm.  . 

almahdi ahmed, azuraliza abu bakar, abdul razak hamdan, sharifah mastura syed abdullah & othman jaafar.  (2012).  discovering frequent serial episodes in symbolic sequences for rainfall dataset.  - 2012 4th conference on data mining and optimization, dmo 2012;langkawi.  . 

zaini sakawi, lukman ismail, mohd rozaimi ariffin, noor khafazilah abdullah, sharifah mastura s.a., othman jaafar.  (2012).  persepsi komuniti terhadap masalah bau dari operasi tapak pelupusan terbuka krubung, melaka.  - geografia online malaysia journal of society and space.  8(9):60-67. 

zaini sakawi, lukman ismail, mohd rozaimi ariffin, sharifah mastura s.a, othman jaafar.  (2012).  pencemaran bau di malaysia: isu dan cabaran pencemaran bau lestari.  - persidangan kebangsaan libatsama universiti dan komuniti.  . 

zaini sakawi, sharifah mastura syed abdullah, othman jaafar, mastura mahmud, lukman ismail, mohd rozaimi ariffin.  (2012).  persepsi penerima sensitif ke atas pencemaran bau dari tapak pelupusan secara terbuka.  - e-bangi.  284-293. 

m.e. toriman, muhamad barzani gasim, zulkifli yusop, ismail shahid, s.a. sharifah mastura, pauzi abdullah, mokhtar jaafar, nor azlina abdul aziz, m.k.a. kamarudin, othman jaafar, othman karim, hafizan.  (2012).  use of 137cs activity to investigate sediment movement and transport modeling in river coastal environment.  - american journal of environmental science.  8(4):417-423. 

siti aminah osman, othman jaafar, wan hamidon wan badaruzzaman, riza atiq abdullah o.k. rahmat.  (2012).  the course outcomes (cos) evaluation for civil engineering design ii course.  - procedia social and behavioral sciences elsevier - ukm teaching and learning congress 2011.  103-111. 

siti aminah osman, syaidahtul isnain naam, othman jaafar, wan hamidon wan badaruzzaman & riza atiq o.k. rahmat.  (2012).  application of rasch model in measuring students performance in civil engineering design ii course.  - procedia social behavioral sciences - international conference on teaching and learning in higher education (ictlhe 2012) in conjunction with rcee & rhed 2012.  . 

lukman ismail, zaini sakawi, noor khafazilah abdullah, sharifah mastura s.a., othman jaafar.  (2012).  pencemaran bau dari kepelbagaian sumber ladang ternakan haiwan: isu, cabaran dan masa depan.  - prosiding persidangan antarabangsa sains sosial dan kemanusiaan (icosh), fssk, ukm.  . 

abdelwahab m. bubtiena, ahmed h. el shafei and othman jafaar.  (2012).  review of rehabilitation strategies for water distribution pipes.  - journal of water supply: research and technology - aqua.  61 (1):23-31. 

abdelwahab m. bubtiena, ahmed h. el shafie and othman jaafar.  (2011).  performance improvement for pipe breakage prediction modeling using regression method.  - international journal of the physical sciences.  6(25):6025-6035. 

noraini hamzah, muhamad azry khoiry, siti aminah osman, roszilah hamid, othman jaafar & ishak arshad.  (2011).  poor student performance in project management course: was the exam wrongly set?.  - proceedings of the 10th wseas international conference on education and educational technology (edu `11).  . 

hai hwee yang, othman jaafar, el-shafie a. and sharifah mastura s. a..  (2011).  analysis of hydrological processes of langat river sub basins at lui and dengkil.  - international journal of the physical sciences.  6(32):7390-7409. 

sabah s. fayaed, ahmed el-shafie and othman jaafar.  (2011).  performance of artificial neural network and regression techniques for simulation model in reservoir inter-relationships.  - international journal of the physical sciences.  6(34):7738-7748. 

salem alzahrani, abdul wahab mohammad, pauzi abdullah, othman jaafar.  (2011).  treatment of oilfield produced water through nf/ro membranes: generating a sustainable drinking water resource by reusing a pollution source.  - international conference on water, energy and environment 2011.  . 

shahrom md zain, wan hamidon wan badaruzzaman, riza atiq o.k rahmat, othman jaafar, noor ezlin ahmad basri dan hassan basri.  (2011).  pengukuran hasil pembelajaran bagi komponen alam sekitar dan pembangunan lestari dalam bidang kejuruteraan awam.  - prosiding kongres pengajaran & pembelajaran ukm 2011,.  . 

othman jaafar, sharifah mastura sa, sabry al-toum.  (2011).  the tekala forest reserve: a study on surface wash and runoff using close system erosion plots.  - geografia online malaysia journal of society and space.  7(1):1-13. 

aldukali salem i. almselati, riza atiq o.k. rahmat and othman jaafar.  (2011).  an overview of urban transport in malaysia.  - the social sciences.  6(1):24-33. 

abdelwahab m. bubtiena, ahmed h. el-shafie and othman jafaar.  (2011).  review on statistical based methods of measuring the water pipes reliability.  - advanced materials research (international conference on frontiers of manufacturing science and measuring technology icfmm 2011).  . 

a. el-shafie, o. jaafer and a. seyed.  (2011).  adaptive neuro-fuzzy inference system based model for rainfall forecasting in klang river, malaysia.  - international journal of the physical sciences.  6(12):2875-2888. 

siti aminah osman, othman jaafar, wan hamidon wan badaruzzaman & riza atiq abdullah o.k. rahmat.  (2011).  course outcomes (cos) evaluation for civil engineering design ii course.  - kongres pengajaran & pembelajaran ukm.  . 

s. a. osman, w. h. w. badaruzzaman, r. hamid, k. taib, a. r. khalim, n. hamzah & o. jaafar.  (2011).  assessment on students performance using rasch model in reinforced concrete design course examination.  - recent researches in education: proceedings of the 10th wseas international conference on education and educational technology (edu` 11).  193-198. 

hossein shamsaei, othman jaafar, noor ezlin ahmad basri.  (2011).  gis advantages and water quality effects and problems in maintenance management of long-line water distribution systems.  - australian journal of basic s and applied sciences.  5(9):2302-2306. 

hai hwee yang, othman jaafar, ahmed el-shafie and sharifah mastura s.a..  (2011).  impact of land-use changes toward base-flow regime in lui and langat dengkil sub-basin.  - international journal of the physical sciences.  6(21):4960-4976. 

almeslati, a.s.i., rahmat, r.a.o., jaafar, o., abuhamoud, m.a.a..  (2011).  the rise of the private car usage in kajang, malaysia: role of parking policy on reducing car usage.  - journal of applied sciences research.  7(8):1263-1268. 

a. najah, a. el-shafie, o. a. karim, and o. jaafar.  (2011).  integrated versus isolated scenario for prediction dissolved oxygen at progression of water quality monitoring stations.  - hydrology and earth system sciences.  15(8):2693-2708,. 

basri n.e.a., taib k.a., jaafar o., md zain s., suja f., kasa a., osman s.a., shanmugam n.e..  (2011).  an evaluation of programme educational objectives and programme outcomes for civil engineering programmes.  - kongres pengajaran dan pembelajaran ukm, 2010; tanjung keling, melaka.  . 

bubtiena a.m., elshafie a.h., jafaar o..  (2011).  application of artificial neural networks in modeling water networks.  - 2011 ieee 7th international colloquium on signal processing and its applications, cspa 2011; penang; 4 march 2011 through 6 march 2011.  . 

zaini sakawi, sharifah mastura, s.a, othman jaafar.  (2011).  the impact of open landfill operation on the concentration of heavy metals in the soil of its proximate environment.  - res.j.applied sci..  6(7-12):439-442. 

roszilah hamid, eliyana othman, siti aminah osman, noraini hamzah, othman jaafar and ahmad afiq abu kasim.  (2011).  determination of materials technology course final examination questions construct validity through rasch model approach.  - proceedings of the 10th wseas international conference on education and educational technology (edu `11), wseas press.  . 

a. najah, a. el-shafie, o. a. karim, o. jaafar and amr h. el-shafie.  (2011).  an application of different artificial intelligences techniques for water quality prediction.  - international journal of the physical sciences.  6(22):5298-5308. 

mohammad dorofki, ahmed h. elshafie, othman jaafar, othman a. karim and sharifah mastura syed abdullah.  (2011).  a gis-based survey for the optimization of infiltration forecasting models with emphasis on slope effect and land use.  - international journal of the physical sciences.  6(24):5738-5751. 

zaini sakawi, sharifah mastura syed abdullah, othman jaafar, mastura mahmud.  (2011).  an analysis of odour concentration using odour concentration meter xp-329 at landfill vicinity.  - research journal of applied sciences.  6(5):324-329. 

uca sideng, sharifah mastura syed abdullah, mohd ekhwan toriman, othman jaafar.  (2011).  perubahan guna tanah dan ampaian sedimen di sub lembangan sungai jenderam selangor malaysia.  - prosiding seminar antarabangsa serumpun 2011.  . 

zaini sakawi, sharifah mastura s.a, othman jaafar, mastura mahmud.  (2011).  pencemaran bau. perbandingan pengukuran instrumentasi dan sensorial.  - seminar internasional serumpun melayu 2011: pembangunan, psikologi dan masalah sosial; fakultas ilmu budaya universitas hasanuddin, makassar.  . 

zaini sakawi, sharifah mastura s.a., othman jaafar, mastura mahmud.  (2011).  sensitive receivers` responses on odour annoyance of a neighbourhood open landfill site.  - journal of applied sciences in environmental sanitation.  6 (2): 191-199. 

z. sakawi, sharifah s.a. mastura, o. jaafar and m. mahmud.  (2011).  community perception of odor pollution from the landfill.  - research journal of environmental and earth sciences.  3(2):142-146. 

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. 

muhammad mukhlisin, farah wahida, othman jaafar and mohd. raihan taha.  (2010).  effect of construction activities on surface flow water quality of bangi forest reserve.  - wahana teknik sipil.  (15):1-12. 

zaini sakawi, sharifah mastura syed abdullah, othman jaafar, mastura mahmud.  (2010).  analisis konsentrasi bau menggunakan odour concentration meter sekitar tapak pelupusan sisa pepejal ampar tenang, sepang, selangor.  - sebumi3: penjanaan ilmu serumpun ke arah kelestarian penyelidikan dan kecemerlangan akademik.  . 

othman jaafar, mohd ekhwan hj toriman, mushrifah hj idris, s.a. sharifah mastura, hafizan hj. juahir, nor azlina abdul aziz, khairul amri kamarudin and nor rohaizah jamil.  (2010).  study of water level-discharge relationship using artificial neural network (ann) in sungai gumum, tasik chini pahang malaysia.  - research journal of applied sciences.  5(1):20-26. 

othman jaafar, mohd ekhwan toriman, s.a. sharifah mastura, muhamad barzani gazim, pan ia lun, pauzi abdullah, mohd khairul amri kamarudin and nor azlina abdul aziz.  (2010).  modeling the impacts of ringlet reservoir on downstream hydraulic capacity of bertam river using xpswmm in cameron highlands, malaysia.  - research journal of applied sciences.  5(2):47-53. 

noor ezlin ahmad basri, kamaruddin abu taib, othman jaafar, shahrom md zain, fatihah suja?, anuar kasa, siti aminah osman, n.e.shanmugam.  (2010).  an evaluation on the achievement of programme educational objectives (peo) and programme objectives (po) for civil & structure and civil & environment engineering programmes by indirect assessment.  - prosiding seminar pendidikan kejuruteraan dan alam bina 2010 (peka2010) sempena kongres pengajaran dan pembelajaran ukm 2010.  . 

nik yusnida nik yusoff, zawawi samba mohamed, othman jaafar, shahrom md zain.  (2010).  non-revenue water in malaysia: case study in selangor.  - proceedings international technical conference cau-ukm (itc 2010), seoul, korea.  . 

k.n. abdul maulud, s. m. syed abdullah, z. sakawi, m. jaafar, o. jaafar & o. karim.  (2010).  landuse and land cover change in southern johor.  - proceedings international technical conference cau-ukm (itc 2010), seoul, korea.  . 

mastura mahmud, maimon abdullah dan othman jaafar.  (2009).  environmental monitoring and auditing in sensitive areas.  - .  132. 

dani irwan masbah, noor ezlin ahmad basri, othman jaafar.  (2009).  kajian kualiti air sungai di tapak pelupusan sungai kembong untuk merehabilitasi tapak perlupusan.  - civil & structural engineering seminar 2009.  . 

leila ooshaksaraie, noor ezlin ahmad basri, othman jaafar, khairul nizam abdul maulud, azuraliza abu bakar.  (2009).  an expert system for soil stabilisation during construction activities.  - 4th international conference on recent advances in materials, minerals & environment and 2nd asian symposium on materials & processing.  . 

leila oosaksaraie, noor ezlin ahmad basri, othman jaafar dan khairul nizam abdul maulud.  (2009).  development of an expert system prototype to monitor surface water quality during construction activities.  - international conference on water resources (icwr 2009).  . 

mohd ekhwan toriman, mazlin mokhtar, muhammad barzani gasim, sharifah mastura syed abdullah, osman jaafar and nor azlina abd aziz.  (2009).  water resources study and modeling at north kedah: a case of kubang pasu and padang terap water supply schemes.  - research journal of earth sciences.  1(2):35-42. 

ahmed, a.n., elshafie, a., karim, o., jaffar, o..  (2009).  evaluation the efficiency of radial basis function neural network for prediction of water quality parameters.  - engineering intelligent systems for electrical engineering and communications.  17(4):221-231. 

sukoco, muhammad mukhlisin and othman jaafar.  (2009).  prediction of soil erosion in sono sragen catchment area by geographic information system.  - international conference on sustainable development for water and waste water treatment, yogyakarta, indonesia, december 14-15, 2009.  . 

mohd ekhwan toriman, hafizan juahir, mazlin mokhtar, muhammad barzani gazim, sharifah mastura s.a, othman jaafar.  (2009).  predicting for discharge characteristics in langat river, malaysia using neural network application model.  - research journal of earth sciences.  1(1):15-21. 

zaini sakawi, sharifah mastura syed abdullah, othman jaafar dan mastura mahmud.  (2009).  pencemaran bau dari tapak pelupusan berdasarkan persepsi masyarakat setempat.  - seminar malindo nusantara 1: dinamika pembangunan sosial, ekonomi, politik nusantara kontemporari dan tantangan abad 21.  . 

mohd ekhwan toriman, a.jalil hassan, muhammad barzani gazim, mazlin mokhtar, sharifah mastura, s.a., othman jaafar, osman karim, nor azlina abdul aziz.  (2009).  integration of 1-d hydrodynamic model and gis approach in flood management study in malaysia.  - research journal of earth sciences.  1(1): 22-27. 

ali najah, ahmed elshafie, othman a. karim, othman jaffar.  (2009).  prediction of johor river water quality parameters using artificial neural networks.  - european journal of scientific research.  28(3):422-435. 

jaafar, o; mastura, sas; sood, am.  (2009).  land use and deforestation modelling of river catchments in klang valley, malaysia.  - sains malaysiana.  38(5):655-664. 

sharifah mastura, s. a & othman j..  (2009).  environmental monitoring and auditing in sensitive areas.  - .  43-53. 

khairul nizam abdul maulud, sharifah mastura syed abdullah, nor ghani md. nor, mokhtar jaafar, othman jaafar, zaini sakawi, ikhwan toriman.  (2009).  modeling and data integration for the study of land use and land cover change in the southern region (johor). focus study on deforestration (lucc).  - prosiding seminar pemantauan projek penyelidikan gup 2007.  . 

othman jaafar, s.a. sharifah mastura & alias mohd sood.  (2009).  land use and land cover, deforestation, river catchment, land use modelling.  - sains malaysiana.  38(5):655-664. 

khairul nizam abdul maulud, sharifah mastura syed abdullah, nor ghani md nor, mokhtar jaafar, othman jaafar, zaini sakawi, ikhwan toriman.  (2008).  modelling and data integration for the study of land use and land cover change in the southern region (johor): focus study on deforestration (lucc).  - prosiding seminar pemantauan projek penyelidikan gup 2007.  . 

othman jaafar, sharifah mastura, s.a and alias mohd sood.  (2008).  land use and deforestation modelling of river catchments.  - international conference on social, development and environmental studies.  . 

shahrom md zain, noor ezlin ahmad basri, fatihah suja, othman jaafar & hassan basri.  (2008).  pendidikan alam sekitar: bagaimana usaha-usaha dilakukan dalam proses pengajaran dan pembelajaran.  - seminar pendidikan kejuruteraan dan alam bina (peka 2008), fakulti kejuruteraan, universiti kebangsaan malaysia..  . 

hassan basri, rakmi abdul rahman, abu bakar mohamad, fatihah suja`, shahrom md zain, rosiah rohani, othman jaafar, abdul amir hassan khadum, noor ezlin ahmad basri, muhammad mukhlisin, khairul nizam.  (2008).  muwarec proceedings of 1st technical meeting muslim water researchers cooperation muwarec kl08.  - .  113. 

yusoff bin ali, othman jaafar, khairul anuar ishak, nurina anuar, zulkifli mohd nopiah dan azami zaharim.  (2008).  penilaian kerja pelajar untuk mencapai objektif kursus pengenalan kepada kejuruteraan kf1134.  - peka 2008, bukit merah resort 2008.  . 

othman jaafar, othman a. karim.  (2006).  non revenue water control : have we done enough?.  - prosiding 8th annual iem water resources colloquium, iem, kuala lumpur.  . 

sharifah mastura s a, sabry al-toum & othman jaafar.  (2006).  rainsplash erosion: a case study in tekala river catchment, east selangor malaysia.  - geografia.  2(1):43-57. 

sabry al toum, othman jaafar & sharifah mastura s.a..  (2005).  a study of surface wash and runoff at tekala forest reserve malaysia.  - e-bangi.  3(3):1-11. 

othman a karim, sharifah mastura syed abdullah & othman jaafar.  (2004).  suspended sediment, remote sensing.  - sains malaysiana.  33:1:1-13. 

khairul anuar mohd. nayan, ir. sri atmaja pjnn. rosyidi, mohd. raihan taha and ir. othman jaafar.  (2003).  culture and science of mountains.  - .  Ms. 75-81. 

s.m.zain, h.basri, f.suja & o.jaafar.  (2002).  land application technique for the treatment & disposal of sewage sludge.  - water science and technology.  46(9): 303-308.