hasya shazwani hasnoramri, lau hor yue, ahmad, a.k..  (2022).  kepelbagaian makroinvertebrat bentik di sungai jeriau, bukit fraser, pahang, malaysia.  - sains malaysiana.  2365-2375. 

ahmad abas kutty, herryawan ryadi eziwar dyari, muhamad syahmin aiman sahrir.  (2022).  tasik chini: kepelbagaian ikan.  - .  109. 

shukor bin md. nor;zaidi bin che cob;ahmad bin abas kutty.  (2021).  stream ecology study at the surrounding areas of hulu jelai dam site, pahang .  - .  . 

n d hettige, h rohasliney, z h b ashaari, a b a kutty, n r b jamil.  (2021).  application of gis for water quality monitoring in the aquaculture impacted rawang sub-basin of the selangor river, malaysia.  - 10th annual international conference (aic) on environmental and life sciences (els) 2020 (earth and environmental science).  1-11. 

shukor bin md. nor;zaidi bin che cob;ahmad bin abas kutty.  (2021).  stream ecology study at the surrounding areas of hulu terengganu dam sites, terengganu.  - .  . 

farah safiah, a. n., ahmad, a. k., nurhafizah-azwa, s.  (2021).  kualiti air dan kepelbagaian makroinvertebrat bentik, di sungai durian perangin, pulau langkawi, kedah, malaysia.  - serangga.  10-23. 

a.k. ahmad, a. hafizah, s.o. sharifah aisyah.  (2021).  chironomidae (order: diptera) diversity in relation to water quality of highland rivers at cameron highlands, malaysia.  - journal of environmental biology.  824-831. 

hettige, n. d., rohasliney, h., ashaari, z. h. b., kutty, a. b.a., jamil, n. r. b.  (2021).  application of gis for water quality monitoring in the aquaculture impacted rawang sub-basin of the selangor river, malaysia.  - the 10th annual international conference 2020 on environmental and life sciences.  1-11. 

a.k. ahmad, m.n.r. nur-hazwani, sharifah aisyah syed omar, e.r. aweng, abdulali taweel.  (2020).  preliminary study on invasive fish species diffusion in selected malaysian freshwater ecosystems.  - pakistan journal of biological sciences.  1374-1379. 

farah safiah,a.n., a.k. ahmad, s.nurhafizah-azwa.  (2020).  kualiti air dan kepelbagaian makroinvertebrat bentik, di sungai durian perangin, pulau langkawi.  - serangga.  10-23. 

ahmad abas kutty, syafinaz salleh, hanisah ibrahim.  (2020).  chironomidae: morfologi dan sitogenetik.  - .  87. 

zalela abd aziz, ahmad abas kutty.  (2020).  kironomid: khazanah sungai.  - .  271. 

sharifah mastura, khairul nizam,ahmad abas, mohd shahrul,mohd marzuki,mohd talib,rakmi,norghani,kamisah,lilia,zaini,rosniza,lam,mokhtar,novel,syarina,aslinda,ahmad tarmizi,azizah,khirunisa.  (2019).  loading analysis and carrying capacity study in pasir gudang.  - .  1-384. 

zalela abd. aziz, ahmad abas kutty.  (2019).  tahap kualiti air bersih kawasan rekreasi sungai lolo, hutan lipur gunung nuang, selangor.  - jurnal akademik ipg kampus perempuan melayu.  195-204. 

ahmad abas kutty, norashila mohd fauzi, s. nurhafizah-azwa, aweng eh rak, sharifah aisyah syed omar.  (2019).  potensi makroinvertebrat bentik sebagai penunjuk biologi di ekosistem sungai rekreasi.  - serangga.  42-57. 

siti zulaiha binti zolkaply, lubna alam, ahmad abas kutty, firoz khan and mazlin mokhtar.  (2019).  a review on climate change, sea level change and paleoclimate history.  - journal of engineering and applied sciences.  . 

wan mohd hafezul wan abdul ghani ,ahmad abas kutty, mohd akmal mahazar salman abdo al-shami, suhaila ab hamid.  (2018).  performance of biotic indices in comparison to chemical-based water quality index (wqi) in evaluating the water quality of urban river.  - environmental monitoring and assessment.  . 

aweng eh rak, ahmad abas kutty.  (2018).  etak : lokan air tawar.  - .  91. 

norhamidi muhamad, ahmad abas kutty,khairul nizam abdul maulud, md. pauzi abdullah, shahrir abdullah, maimon abdullah, amiruddin ismail, mohd. ekhwan hj. toriman, mohd hasni hj jaafar, nor. ghani md. nor, wan zuhairi wan yaacob & meor zainal meor tali.  (2018).  environmental impact assessment second schedule for the kuala lumpur singapore high speed rail hsr project.  - .  . 

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.  - .  . 

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.  - .  . 

nurul akhma zakaria, ahmad abas kutty, mohd akmal mahazar, marina zainal abidin.  (2018).  penggunaan spesies ikan air tawar terpilih sebagai penunjuk biologi pencemaran kromium dan selenium di malaysia.  - sains malaysiana.  . 

ahmad abas kutty, khairul nizam abdul maulud, rakmi abd rahman, amiruddin ismail, wan zuhairi wan yaacob, jasni yaacub, mohd talib latif, azli arifin, maimon abdullah, aman samsurey, noraishah md zamani & mohd. fikri mohd sani.  (2018).  eia for the proposed tin ore mining, sand mining and removal of overburden on pt822 of mukim ulu tinggi and pt5571 of mukim batang berjuntai, kuala selangor, selangor darul ehsan.  - .  . 

marina zainal abidin, ahmad abas kutty, tukimat lihan & nurul akhma zakaria.  (2018).  hydrological change effects on sungai langat water quality.  - sains malaysiana.  . 

ahmad abas kutty, hanisah ibrahim.  (2018).  potensi chironomidae sebagai penunjuk biologi di sungai rekreasi terpilih janda baik, pahang, semenanjung malaysia.  - serangga.  . 

aweng, e. r., sharifah aisyah, s. o. and ahmad, a. k..  (2017).  influence of habitat characteristics on the assemblage and distribution of ephemeroptera, plecoptera and trichoptera (ept) at selected recreational rivers in kelantan, malaysia.  - international journal of advanced and applied sciences.  37-48. 

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.  - .  . 

ahmad abas kutty, khairul nizam maulud, wan zuhairi wan yaacob, pauzi abdullah, rakmi abd rahman, talib latif, shahrir abdullah, amiruddin ismail, maimon abdullah, razak mohd & ahmad adnan mohamed.  (2016).  eia for proposed kedah science & technology park, bukit kayu hitam, kedah darul aman.  - eia report.  . 

md pauzi abdullah, rahmah elfithri, syafinaz salleh, syamimi halimshah, ahmad abas kutty, khairul nizam ahmad maulud, lee yook heng, maimon abdullah, ahmad fuad embi, othman karim, mazlin mokhtar,.  (2016).  integrated river basin management (irbm) approach to support flood disaster strategy for pahang river basin.  - persidangan kajian bencana banjir 2014.  . 

ahmad abas kutty, nur shazwani muhammad, wan hanna melini wan mohtar, tukimat lihan, rahmah elfithri, liew ju neng, razak mohd.  (2016).  pelan pengurusan lembangan sungai bersepadu (irbm) lembangan sungai klang (2016-2021).  - .  650. 

aweng e.r., sharifah aisyah s.o., ahmad abas k., ahmad fadli a.s., azrinaaini m.y., liyana a.a..  (2015).  influence of water quality index (wqi) on biotic indices of benthic macroinvertebrate at highland rivers in kelantan and pahang.  - jurnal teknologi.  5-8. 

sharifah aisyah s.o., aweng e.r., razak w., ahmad abas k..  (2015).  preliminary study on benthic macroinvertebrates distribution and assemblages at lata meraung waterfall, pahang, malaysia.  - jurnal teknologi.  1-4. 

ahmad, a.k., a. siti hafizah & m. shuhaimi-othman.  (2015).  potensi makroinvertebrat bentik sebagai penunjuk biologi di sungai ikan, hulu terengganu, terengganu.  - sains malaysiana.  663-670. 

ahmad a.k., siti hafizah a., shuhaimi-othman m..  (2015).  potensi makroinvertebrat bentik sebagai penunjuk biologi di sungai ikan, hulu terengganu, terengganu.  - sains malaysiana.  663-670. 

idris, a.a. ahmad, a.k..  (2015).  heavy metal concentrations in fishes from juru river, estimation of the health risk.  - bulletin of environmental contamination and toxicology.  204-208. 

ahmad, a.k. a.h.,siti munirah, m.shuhaimi-othman.  (2015).  preliminary test of fish resporitory and locomotive signal using multispecies freshwater bioindicator (mfb).  - jurnal teknologi.  155-158. 

ahmad a.k., aziz z.a., shuhaimi-othman m..  (2014).  chironomid spatial distribution within the upstream of sungai langat catchment.  - sains malaysiana.  1657-1663. 

mohammad shuhaimi othman, nadzifah yakub, nur amalina ramle, ahmad abas.  (2013).  comparative metal toxicity on freshwater fish.  - toxicity and industrial health.  773-782. 

taweel, abdulali; shuhaimi-othman, m.; ahmad, a. k..  (2013).  assessment of heavy metals in tilapia fish (oreochromis niloticus) from the langat river and engineering lake in bangi, malaysia, and evaluation of the health risk from tilapia consumption.  - ecotoxicology and environmental safety.  93:45-51. 

akmal mahazar, mohammad shuhaimi-othman, ahmad abas kutty & mohamed nor mohamed desa.  (2013).  monitoring urban river water quality using macroinvertebrate and physico-chemical parameters: case study of penchala river, malaysia.  - journal of biological sciences.  13(6):474-482. 

taweel, a., m. shuhaimi-othman, m., a.k. ahmad.  (2013).  evaluation of copper, lead and arsenic level in tilapia fish in cempaka lake (bangi, malaysia) and human daily/weekly intake.  - biologia.  68(5):983-991. 

abdulali taweel, m. shuhaimi-othman and a. k. ahmad.  (2013).  in vivo acute toxicity tests of some heavy metals to tilapia fish (oreochromis niloticus).  - journal of biological sciences.  13(5):365-371. 

a.a.idris,a.k.ahmad.  (2013).  heavy metals nickel and chromium in sediment in the juru river,penang, malaysia.  - journal of environmental protection.  1245-1250. 

akmal mahazar, mohammad shuhaimi-othman, and ahmad abas kutty.  (2013).  benthic macroinvertebrate as biological indicator for water quality in sungai penchala.  - aip conference proceedings -ukm fst postgraduate colloquium.  . 

ahmad,a.k., z. abd aziz & m. shuhaimi othman.  (2013).  the first record of robackia saether (diptera:chironomidae) from peninsular malaysia.  - serangga.  1-9. 

m. mustaqim-alias and a.k. ahmad.  (2013).  benthic macroinvertebrates diversity and water quality assessment at sungai congkak recreational are, hulu langat selangor.  - aip conference proceeding-ukm fst postgraduate colloqium.  . 

ahmad, a.k., aziz, z.a., fun, h.y., ling, t.m., othman, m.s..  (2013).  the use of benthic macroinvertebrates as bio-indicator at sungai kongkoi, negeri sembilan, malaysia [makroinvertebrat bentik sebagai penunjuk biologi di sungai kongkoi, negeri sembilan, malaysia].  - sains malaysiana.  42(5):605-614. 

ahmad, a.k., othman, m.s., lim, e.c., aziz, z.abd..  (2013).  lake chini water quality assessment using multivariate approach [analisis kualiti air tasik chini menggunakan pendekatan multivariat].  - sains malaysiana.  42(5):587-596. 

abdulali k.a. taweel, m. shuhaimi-othman & a.k. ahmad.  (2012).  analysis of heavy metal concentrations in tilapia fish (oreochromis niloticus) from four selected markets in selangor, peninsular malaysia.  - journal of biological sciences.  12(3):138-145. 

m. shuhaimi-othman, y. nadzifah, n.s. umirah, a.k. ahmad.  (2012).  toxicity of metals to an aquatic worm, nais elinguis (oligochaeta, naididae).  - research journal of environmental toxicology.  6(4):122-132. 

shuhaimi-othman m., ahmad a.k., nadzifah y., azmah m..  (2012).  metal concentrations in sungai sedili kecil, johor, peninsular malaysia.  - journal of tropical marine ecosystem.  2(1):15-23. 

idris a.a and ahmad a.k.  (2012).  concentration of selected heavy metals in water of the juru river, penang.  - african journal of biotechnology.  8234-8240. 

ahmad, a.k., z. abd. aziz, k.s. min & m. shuhaimi-othman.  (2012).  chironomidae diversity and distribution at upstream of sungai langat, hulu langat, selangor, malaysia..  - serangga.  21-36. 

said, k.s.a., shuhaimi-othman, m., ahmad, a.k..  (2012).  the evaluation of water quality and metal concentrations of titiwangsa lake, selangor, peninsular malaysia.  - pakistan journal of biological sciences.  15(10):459-468. 

said, k.s.a., shuhaimi-hman, m., ahmad, a.k..  (2012).  the determination of water quality and metal concentrations of ampang hilir lake, selangor, peninsular malaysia.  - pakistan journal of biological sciences.  15(9):437-447. 

shuhaimi-othman, m., nadzifah, y., umirah, n.s., ahmad, a.k..  (2012).  toxicity of metals to tadpoles of the common sunda toad, duttaphrynus melanostictus.  - toxicological and environmental chemistry.  94(2):364-376. 

aweng-eh rak, ismid-said, maketab-mohamed & ahmad-abas.  (2011).  effect of logging activities on water quality and benthic macroinvertebrate assemblages of madek river basin, kluang, johor, malaysia.  - j. appl. sci. environ. manage.  15(2):337-340. 

mohammad shuhaimi-othman, nadzifah yakub, nur-amalina ramle, and ahmad abas.  (2011).  toxicity of metals to a freshwater ostracod, stenocypris major.  - journal of toxicology.  2011:1-8. 

a.k. ahmad, sharifah mohamad sharif and m. shuhaimi-othman.  (2011).  determination of chironomus javanus behaviour using multispecies freshwater biomonitor (mfb).  - asian journal of water, environment and pollution.  8(1):33-40. 

shuhaimi-othman, m; yakub, n; ramle, na; abas, a.  (2011).  sensitivity of the freshwater prawn, macrobrachium lanchesteri (crustacea: decapoda), to heavy metals.  - toxicology and industrial health.  27(6):523-530. 

ahmad, a.k., mohd sham, o., shukor, m.n., aweng, eh-r & shuhaimi-othman, m..  (2011).  ecological factors affecting fish diversity and density in sungkai wildlife reserve, perak, malaysia.  - the zoologist.  9: 78-84. 

mohammad shuhaimi-othman, nadzifah yakub, nur shahirul umirah & ahmad abas.  (2011).  toxicity of eight metals to malaysian freshwater midge larvae chironomus javanus (diptera, chironomidae).  - toxicology and industrial health.  27(10):879-886. 

tawee, a., shuhaimi-othman, m., ahmad, a.k..  (2011).  heavy metals concentration in different organs of tilapia fish (oreochromis niloticus) from selected areas of bangi, selangor, malaysia.  - african journal of biotechnology.  10(55):11562-11566. 

ahmad a.k., shuhaimi-othman m..  (2010).  heavy metal concentrations in sediments and fishes from lake chini, pahang, malaysia.  - journal of biological sciences.  10(2):93-100. 

m. shuhaimi-othman, m. azmah & a.k. ahmad.  (2010).  penggunaan biopenunjuk multispesies air tawar dalam menilai perubahan kelakuan ikan gapi poecilia reticulata dan udang air tawar macrobrachium lanchesteri terhadap logam kadmium.  - sains malaysiana.  39(4):549-555. 

m. shuhaimi-othman, a.k. ahmad & g. norziana.  (2010).  kepekatan logam di tasik bukit merah, perak.  - sains malaysiana.  39(6):883-889. 

maimon abdullah, ahmad abas kutty, abdullah samat, salmijah surif, shuhaimi othman.  (2009).  environmental monitoring and auditing in sensitive areas.  - .  Bab 7 ; 93-111. 

m. shuhaimi-othman, y. nadzufah, r. nur-amalina & a. ahmad.  (2009).  ketoksikan logam kuprum dan nikel terhadap udang air tawar macrobrachium lanchesteri (toxicity of copper and nickel to freshwater prawn macrobarchium lanchesteri).  - sains malaysiana.  38(3):353-358. 

ahmad, ak; mushrifah, i; shuhaimi-othman, m.  (2009).  water quality and heavy metal concentrations in sediment of sungai kelantan, kelantan, malaysia: a baseline study.  - sains malaysiana.  38(4):435-442. 

mohd. shuhaimi othman, e.c. lim, mushrifah idris & ahmad abas kutty.  (2009).  sumber asli tasik chini: ekspedisi saintifik.  - .  43-54. 

ahmad, a.k., m. shuhaimi-othman, m.m., ali.  (2009).  a temporal study of selected metals concentration in fishes of lake chini, peninsular malaysia.  - the malaysian journal of analytical sciences.  13(1): 100-106. 

kutty, aa; othman, ms; ghasim, mb; dugat, s.  (2009).  kepelbagaian ikan di tasik chini, pahang, malaysia [fish diversity at lake chini, pahang, malaysia].  - sains malaysiana.  38(5):625-630. 

m. shuhaimi-othman, i. mushrifah, e.c. lim, a. ahmad.  (2008).  trend in metals variation in tasik chini, pahang, peninsular malaysia.  - environmental monitoring and assessment.  143(1-3):345-354. 

nizam, m.s., nurhanim mohamed noor, shuhaimi-othman, m., abas, a. & hussin, k.  (2008).  the decline of nelumbo nucifera (teratai) and abundance of cabomba furcata (ekor kucing) at tasik chini, pahang: relationships of environmental parameters.  - 3rd regional symposium on environment and natural resources, lestari ukm.  . 

muhammad barzani gasim, mohd. ekhwan hj. toriman, ahmad abas, mir sujaul islam & tan choon chek.  (2008).  water quality of several quality feeder rivers between two seasons in tasik chini, pahang.  - sains malaysiana.  37(4):313-321. 

saiful arif abdullah, norhayati ahmad, mohammad shuhaimi othman, ahmad abas kutty and zulfahmi ali rahman.  (2008).  conservation for a green future.  - 3rd regional symposium on environment and natural resources, 5-6 august 2008, prince hotel & residence kuala lumpur.  . 

saiful arif abdullah, norhayati ahmad, mohammad shuhaimi othman, ahmad abas kutty, zulfahmi ali rahman.  (2008).  3rd regional symposium on enviroment and natural resources "conservation for a green future".  - .  135. 

ahmad abas kutty & nik mohd alwi nik buliamin.  (2004).  indicators of sustainable development: assessing changes in environmental conditions.  - .  Ms. 319-328. 

ahmad-abas k. dan che sarina abdul wahab.  (2003).  kepelbagaian biologi dan ekologi fauna di malaysia.  - .  157-168. 

ahmad abas kutty & lai mei hui.  (2001).  analisis kandungan logam berat di dalam air dan tisu ikan di tasik chini.  - the malaysian journal of analytical science.  7(1):273-279.