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. 

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. 

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.  . 

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.  . 

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. 

aina izzati muhammad rashid, rosiah rohani, othman jaafar, nur shazwani muhammad.  (2021).  chlorine decay and formation of thm in malaysia water distribution system.  - environment protection engineering.  19-41. 

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. 

siti hawa mohd yusoff, firdaus mohamad hamzah, othman jaafar & hazrina tajudin.  (2021).  long term trend analysis of upstream and middle-stream river in langat basin, selangor, malaysia.  - sains malaysiana.  629-644. 

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. 

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. 

siti hawa mohd yusoff, firdaus mohamad hamzah, othman jaafar.  (2022).  multiparameter probability distributions of at-site lmoment- based frequency analysis in malaysia.  - international journal of mechanical engineering.  1-11. 

siti hawa mohd yusoff, firdaus mohamad hamzah, othman jaafar & hazrina tajudin.  (2021).  long term trend analysis of upstream and middle-stream river in langat basin, selangor, malaysia.  - sains malaysiana.  629-644. 

aina izzati muhammad rashid, rosiah rohani, othman jaafar, nur shazwani muhammad.  (2021).  chlorine decay and formation of thm in malaysia water distribution system.  - environment protection engineering.  19-41. 

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. 

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. 

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. 

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. 

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. 

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

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.  . 

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. 

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

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. 

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. 

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. 

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

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. 

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

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. 

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. 

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

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. 

rosiah binti rohani;siti rozaimah bt. sheikh abdullah;othman bin jaafar;nur shazwani binti muhammad.  (2023).  tingkahlaku fluorida di dalam air minuman terawat dari loji rawatan air.  - .  . 

marlia binti mohd hanafiah;mohd. ekhwan bin toriman;azhar bin abdul halim;othman bin jaafar.  (2021).  establishing water efficiency toolkit using water footprint as a key indicator to assess performance of water utilities: inculcating the concept of kampus lestari, ukm.  - .  . 

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.  - .  . 

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..  - .  . 

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.  - .  .