terry j. ord, arvin diesmos, norhayati ahmad, indraneil das.  (2023).  evolutionary loss of complexity in animal signals: cause and consequence.  - evolution.  660-669. 

terry j. ord, danielle a. klomp, thomas c. summers, arvin diesmos, norhayati ahmad, indraneil das.  (2021).  deep-time convergent evolution in animal communication presented by shared adaptations for coping with noise in lizards and other animals.  - ecology letters.  1-12. 

danielle a. klomp, devi stuart-fox, elizabeth j. cassidy, norhayati ahmad, terry j. ord.  (2017).  color pattern facilitates species recognition but not signal detection: a field test using robots.  - behavioral ecology.  1-10. 

chan k.o., brown r.m., lim k.k.p., ahmad n., grismer l..  (2014).  a new species of frog (amphibia: anura: ranidae) of the hylarana signata complex from peninsular malaysia.  - herpetologica.  228-240. 

faruk, a., belabut, d., norhayati, a., knell, r.j. & garner, t.w.j..  (2013).  effects of oil palm plantations on diversity of tropical anurans.  - conservation biology.  27(3):615-624. 

hani kartini agustar, amatul hamizah ali, norhayati ahmad, muhammad zulfadhli nasiruddin lim.  (2022).  taburan parasit anura dan indeks kualiti air di kawasan tasik dan tanah bencah putrajaya.  - sains malaysiana.  3449-3461. 

ibrahim komoo, norzaini azman, norhayati ahmad, che aziz ali, azmil munif bukhari.  (2022).  an integrated geoproduct development for geotourism in langkawi unesco global geopark: a case study of the kubang badak biogeotrail.  - geoheritage.  1-19. 

norshaqinah ayob, muzneena ahmad mustapha, juliana senawi, norhayati ahmad.  (2020).  herpetofauna roadkills on langkawi island, peninsular malaysia: the influence of landscape and season on mortality distribution.  - sains malaysiana.  2373-2382. 

ehwan, n., nur johana, j., shukor, m.n., yaakop, s., grismer, l.l. & norhayati, a..  (2018).  species richness and distributional pattern of amphibians along an elevational gradient at gunung raya, pulau langkawi, kedah, malaysia.  - sains malaysiana.  . 

sumarli, a.x., grismer, l.l., wood, p.l.jr., amirrudin, a., syed rizal, lukman, h.i., nur amalina, m.i., norhayati, a. & linkem, c.w..  (2016).  the first riparian skink (genus: sphenomorphus strauch, 1887) from peninsular malaysia and its relationship to other indochinese and sundaic species.  - zootaxa.  29-44. 

terry j. ord, arvin diesmos, norhayati ahmad, indraneil das.  (2023).  evolutionary loss of complexity in animal signals: cause and consequence.  - evolution.  660-669. 

ibrahim komoo, norzaini azman, norhayati ahmad, che aziz ali, azmil munif bukhari.  (2022).  an integrated geoproduct development for geotourism in langkawi unesco global geopark: a case study of the kubang badak biogeotrail.  - geoheritage.  1-19. 

ehwan n., j. nur johana, m.n. shukor, l.l. grismer, y. salmah, a. norhayati.  (2022).  temporal variation of amphibians on gunung raya, pulau langkawi, kedah, peninsular malaysia.  - malayan nature journal.  565-577. 

nor khairunnisa talib, mohd zulhafiz said, nurazlin abdullah, syeh sahibul karamah masnan, nurasikin rashidi, mokhtar saidin, ibrahim komoo, che aziz ali, norhayati ahmad, rosazman hussin.  (2022).  geological, geoarchaeological, biological, and historical heritage of lenggong geopark development..  - planning malaysia: journal of the malaysian institute of planners.  115-129. 

tan poai ean, daicus belabut, chan kin onn, norhayati ahmad.  (2022).  amphibian diversity and species composition in a lowland tropical rainforest of ulu gombak, selangor, peninsular malaysia.  - malayan nature journal.  521-535. 

j. nur johana, a. m. muzzneena, l. l. grismer, and a. norhayati.  (2016).  species composition, diversity and relative abundance of amphibians in forests and non-forest habitats on langkawi island, peninsular malaysia.  - the 2016 ukm fst postgraduate colloquium,aip conference proceedings.  1-6. 

ehwan,n., m. n. shukor, y. salmah, l. l. grismer, and.  (2016).  herpetofauna diversity at gunung raya, pulau langkawi, kedah, peninsular malaysia.  - the 2016 ukm fst postgraduate colloquium, aip conference proceeding.  1-8. 

zain, c.r.c.m., ibrahim, k., basri, k.h., joe, l.s., nor, m.m., jumali, m.h.h., yusoff, m.f.m., noorani, m.s.m., mustapha, m.a., ibrahim, n., rasol, n.h.a., ahmad, n., daud, n.m., masseran, n., karim, n.h.a., dzul-kifli, s.c., yaacob, w.z..  (2016).  preface: the 2016 ukm fst postgraduate colloquium.  - the 2016 ukm fst postgraduate colloquium, aip conference proceedings.  1001-1080. 

norhayati ahmad, nurulhuda zakaria, shukor md. nor.  (2022).  amfibia dan reptilia di kuala gandah pahang malaysia.  - .  143. 

norhayati ahmad, daicus belabut, chan kin onn.  (2021).  ular darat malaysia.  - land snakes of malaysia.  100. 

juliana senawi, norhayati ahmad.  (2021).  kelawar malaysia / bats of malaysia.  - .  80. 

maimon abdullah, norhayati ahmad, sharifah mastura syed abdullah.  (2019).  biodiversity in oil palm plantations malaysia.  - .  6. 

ibrahim komoo, norhayati ahmad, tanot unjah.  (2019).  taman georimba marmar dayang bunting langkawi geopark, malaysia.  - .  5. 

norhayati ahmad, ibrahim komoo.  (2022).  alam sekitar dan kelestarian: ilmu untuk masyarakat.  - .  4. 

sharina abdul halim, tanot unjah, norhayati ahmad, ibrahim komoo.  (2022).  conserving biocultural landscapes in malaysia and indonesia for sustainable development.  - .  16. 

a. latiff, norhayati a., y.f. ng, muhamad anas a..  (2021).  taman negeri rompin pahang: a world of wonders and enchantments.  - .  13. 

norzaini azman, norhayati ahmad, ibrahim komoo.  (2021).  mersing geopark: lingkaran volkano kuno.  - .  165. 

norhayati ahmad, a latiff, ng y.f..  (2021).  taman negeri rompin pahang: a world of wonders and enchantmentscs.  - .  140. 

norhayati ahmad, wan daraputri razali, ibrahim komoo.  (2022).  alam sekitar dan kelestarian: ilmu untuk masyarakat.  - .  168. 

norhayati ahmad, nurulhuda zakaria, shukor md. nor.  (2022).  amfibia dan reptilia di kuala gandah pahang malaysia.  - .  143. 

norhayati ahmad, daicus belabut, chan kin onn.  (2021).  ular darat malaysia.  - land snakes of malaysia.  100. 

a.g. shaffie, a. latiff, norhayati ahmad & ng yong foo.  (2021).  perlis state park : the jewel of perlis limestones.  - .  116. 

ibrahim komoo, norhayati ahmad & edy tonnizam mohamad.  (2021).  mersing geopark : lingkaran volkano kuno.  - .  165. 

ibrahim komoo., che aziz ali, norhayati ahmad, norzaini azman.  (2022).  geotapak gunung raya langkawi unesco global geopark.  - ebulletin ppl.  4-5. 

norhayati ahmad.  (2022).  hutan simpan gunung raya sebagai calon taman georimba granit gunung raya.  - ebulletin ppl bi. 1/2022.  10-11. 

norhayati ahmad, ibrahim komoo, norzaini azman, che aziz ali, azmil munir mohd bukhari.  (2021).  an integrated geoproduct development for geotourism in langkawi unesco global geopark, malaysia: a case study of the kubang badak biogeotrail.  - 9th international conference on unesco global geoparks.  1. 

tanot unjah, sharina abdul halim & norhayati ahmad.  (2021).  school program at langkawi unesco global geopark.  - digital 9th international conference on unesco global geopark 2021.  1-13. 

komoo ibrahim, mat stafa rapidah, ahmad norhayati, ali che aziz & jaafar rashid.  (2021).  geosite conservation within development area: case study in lembah kinta national geopark, malaysia.  - digital 9th international conference on unesco global geoparks.  1.