benedict terkula iber, donald torsabo, che engku noramalina che engku chik, fachrul wahab, siti rozaimah sheikh abdullah, hassimi abu hassan and nor azman kasan.  (2023).  a study on the effects of interfering with the conventional sequential protocol for chemical isolation and characterization of chitosan from biowaste of giant freshwater prawn macrobrachium rosenbergii.  - heliyon.  1-19. 

benedict terkula iber, donald torsabo, che engku noramalina che engku chik, fachrul wahab, siti rozaimah sheikh abdullah, hassimi abu hasan, nor azman kasan.  (2023).  optimization of chitosan coagulant from dry legs of giant freshwater prawn, macrobrachium rosenbergii in aquaculture wastewater treatment using response surface methodology (rsm).  - journal of environmental chemical engineering.  1-16. 

benedict terkula iber, donald torsabo, che engku noramalina che engku chik, fachrul wahab, siti rozaimah sheikh abdullah, hassimi abu hassan, nor azman kasan.  (2023).  response surface methodology (rsm) approach to optimization of coagulation-flocculation of aquaculture wastewater treatment using chitosan from carapace of giant freshwater prawn macrobrachium rosenbergii.  - polymers.  1-27. 

muhammad fauzul imron, abiyyu armijn firman firdaus, zhiella octabriani flowerainsyah, dzikro rosyidah, nurina fitriani, setyo budi kurniawan, siti rozaimah sheikh abdullah, hassimi abu hasan, yudha gusti wibowo.  (2023).  phytotechnology for domestic wastewater treatment: performance of pistia stratiotes in eradicating pollutants and future prospects.  - journal of water process engineering.  1-8. 

nor sakinah mohd said, siti rozaimah sheikh abdullah, nur izzati ismail, hassimi abu hasan, ahmad razi othman.  (2023).  integrating treatment processes of coffee processing mill effluent for reclamation of secondary resources.  - journal of cleaner production.  1-18. 

hasanain saad alhares, mohammed ali a. shaban, mohammed sadeq salman, mohanad j. m-ridha, sabah j. mohammed, khalid m. abed, mohammed a. ibrahim, ali k. al-banaa & hassimi abu hasan.  (2023).  sunflower husks coated with copper oxide nanoparticles for reactive blue 49 and reactive red 195 removals: adsorption mechanisms, thermodynamic, kinetic, and isotherm studies.  - water air and soil pollution.  1-20. 

setyo budi kurniawan, azmi ahmad, muhammad fauzul imron, siti rozaimah sheikh abdullah, ahmad razi othman, hassimi abu hasan.  (2023).  performance of chemical-based vs bio-based coagulants in treating aquaculture wastewater and cost-benefit analysis.  - polish journal of environmental studies.  1177-1187. 

z. m. hanafiah, w. h. m. wan mohtar, h. a. hasan, h. s. jensen, a. klaus, s. sharil, w. a. a. q. i. wan mohtar.  (2022).  ability of ganoderma lucidum mycelial pellets to remove ammonia and organic matter from domestic wastewater.  - international journal of environmental science and technology.  7307-7320. 

hind munaem ahmed, siti rozaimah sheikh abdullah, hassimi abu hasan, ahmad razi othman, nur izzati ismail, setyo budi kurniawan.  (2021).  phytotoxicity of coffee wastewater to water hyacinth as prior step to phytotreatment assessment: influence of concentration and amount of plant biomass.  - environmental engineering and management journal.  317-328. 

mohd hafizuddin muhamad, siti rozaimah sheikh abdullah, hassimi abu hasan, nur izzati ismail.  (2019).  effects of pentachlorophenol load on pcp, cod and nh3- n removal in lab-scale multimedia-sequencing batch biofilm reactor treating recycled paper mill wastewater.  - journal of environmental biology.  556-562. 

benedict terkula iber, donald torsabo, che engku noramalina che engku chik, fachrul wahab, siti rozaimah sheikh abdullah, hassimi abu hassan and nor azman kasan.  (2023).  a study on the effects of interfering with the conventional sequential protocol for chemical isolation and characterization of chitosan from biowaste of giant freshwater prawn macrobrachium rosenbergii.  - heliyon.  1-19. 

ghazi m. aziz, sahar i. hussein, mohanad j. m-ridha, sabah j. mohammed, khalid m. abed, mohd hafizuddin muhamad, hassimi abu hasan.  (2023).  activity of laccase enzyme extracted from malva parviflora and its potential for degradation of reactive dyes in aqueous solution.  - biocatalysis and agricultural biotechnology.  1-11. 

benedict terkula iber, donald torsabo, che engku noramalina che engku chik, fachrul wahab, siti rozaimah sheikh abdullah, hassimi abu hassan, nor azman kasan.  (2023).  response surface methodology (rsm) approach to optimization of coagulation-flocculation of aquaculture wastewater treatment using chitosan from carapace of giant freshwater prawn macrobrachium rosenbergii.  - polymers.  1-27. 

benedict terkula iber, donald torsabo, che engku noramalina che engku chik, fachrul wahab, siti rozaimah sheikh abdullah, hassimi abu hasan, nor azman kasan.  (2023).  optimization of chitosan coagulant from dry legs of giant freshwater prawn, macrobrachium rosenbergii in aquaculture wastewater treatment using response surface methodology (rsm).  - journal of environmental chemical engineering.  1-16. 

nor sakinah mohd said, siti rozaimah sheikh abdullah, nur izzati ismail, hassimi abu hasan, ahmad razi othman.  (2023).  integrating treatment processes of coffee processing mill effluent for reclamation of secondary resources.  - journal of cleaner production.  1-18. 

badiea s. babaqi, mohd s. takriff, nur tantiyani a.othman, hassimi abu hasan, ebrahim mahmoudi.  (2021).  modeling and simulation for integrating four reactors in the continuous catalytic regeneration reforming process using matlab.  - 1st international conference on engineering and technology (icoengtech).  1-14. 

z m hanafiah , w h m wan mohtar, h a hasan , h s jensen , m z abdullah and h husain.  (2019).  diversification of temporal sewage loading concentration in tropical climates.  - iop conf. series: earth and environmental science.  1-11. 

ainil farhan mohd udaiyappan, hassimi abu hasan, mohd sobri takriff.  (2022).  mikroalga: agen biorawatan efluen sawit.  - .  121. 

hassimi abu hasan, fathiyyah mohd zainuddin, junaidah buhari.  (2022).  bakteria: agen biodegradasi bahan sampingan disinfeksi dalam air.  - .  205. 

nur izzati ismail, siti rozaimah sheikh abdullah, hassimi abu hasan.  (2021).  fitoremediasi: teknologi semula jadi bagi rawatan air sisa perlombongan.  - .  146. 

hassimi abu hasan, siti nur hatika abu bakar and mohd sobri takriff.  (2021).  microalgae: cultivation, recovery of compounds and applications.  - .  441. 

mohd hafizuddin muhamad, hassimi abu hasan, siti rozaimah sheikh abdullah.  (2021).  rawatan sisa kilang kertas.  - .  181. 

hassimi abu hasan, siti nur hatika abu bakar and mohd sobri takriff.  (2021).  microalgae: cultivation, recovery of compounds and applications.  - .  441. 

abudukeremu kadier, najeeb k. n. al-shorgani, dipak a. jadhav, jayesh m. sonawane, abhilasha s. mathuriya, mohd s. kalil, hassimi a. hasan, khulood fahad saud alabbosh.  (2020).  bioelectrosynthesis: principles and technologies for value-added products.  - .  34. 

abudukeremu kadier, amit kumar chaurasia, s. m. sapuan, r. a. ilyas, peng cheng ma, khulood fahad saud alabbosh, pankaj kumar rai, washington logroño, aidil abdul hamid, hassimi abu hasan.  (2020).  bioelectrochemical systems: vol.1 principles and processes.  - .  29. 

abudukeremu kadier, mohd sahaid kalil, pankaj kumar rai, smita s. kumar, peyman abdeshahian, periyasamy sivagurunathan, hassimi abu hasan, aidil abdul hamid, azah mohamed.  (2020).  bioelectrochemical interface engineering.  - .  25. 

abudukeremu kadier, rustiana yuliasni, s. m. sapuan, r. a. ilyas, pankaj kumar rai, peng cheng ma, aruliah rajasekar, khulood fahad saud alabbosh, aidil abdul hamid, hassimi abu hasan.  (2020).  bioelectrochemical systems: vol. 2 current and emerging applications.  - .  20. 

ainil farhan mohd udaiyappan, hassimi abu hasan, mohd sobri takriff.  (2022).  mikroalga: agen biorawatan efluen sawit.  - .  121. 

hassimi abu hasan, fathiyyah mohd zainuddin, junaidah buhari.  (2022).  bakteria: agen biodegradasi bahan sampingan disinfeksi dalam air.  - .  205. 

nur izzati ismail, siti rozaimah sheikh abdullah, hassimi abu hasan.  (2021).  fitoremediasi: teknologi semula jadi bagi rawatan air sisa perlombongan.  - .  146. 

mohd hafizuddin muhamad, hassimi abu hasan, siti rozaimah sheikh abdullah.  (2021).  rawatan sisa kilang kertas.  - .  181. 

siti nur hatika abu bakar, hassimi abu hasan, abdul wahab mohammad.  (2019).  pengurusan sisa kilang sawit.  - .  106. 

hassimi bin abu hasan;noorhisham bin tan kofli;siti rozaimah bt. sheikh abdullah;ahmad razi bin othman.  (2023).  analisis sifat fiziko-kimia dan kinetik penghasilan bioflokulan polimerik oleh bakteria penghasil-bioflokulan asli sebagai alternatif kepada flokulan kimia dalam rawatan air.  - .  . 

maryam zulkifli dan hassimi abu hasan.  (2023).  kaedah rawatan air sisa domestik.  - dewan kosmik.  14-17. 

jahira alias dan hassimi abu hasan.  (2023).  azolla pinnata berpotensi ganti makanan ayam.  - utusan malaysia.  1-5. 

siti rozaimah bt. sheikh abdullah;babul airianah binti othman;hassimi bin abu hasan;noorashikin binti md saleh;ahmad razi bin othman;nur `izzati binti ismail.  (2022).  biopenggilapan air sisa industri minyak kelapa sawit (pome) terawat menggunakan azolla pinnata dan lemna minor bagi penghasilan makanan ternakan.  - .  . 

hassimi abu hasan dan siti nur hatika abu bakar.  (2022).  kaedah merawat efluen kilang minyak sawit.  - dewan kosmik.  58-59.