fatihah suja, wan nur fazlina abdol jani, noorhisham tan kofli, suraya sharil.  (2018).  bioleaching for recovery of base and precious metals from electronic waste: a review.  - international journal of civil engineering and technology (ijciet).  1935-1943. 

zarina othman, wahiza wahi, azizah ya`acob, noor hisham tan zolkifli.  (2017).  a collaborative esp: engineering specific purpose for workplace english.  - journal of international research of south east asia.  18-31. 

n.s.shamsul,s.k.kamarudin, n.t.kofli, n.a.rahman.  (2017).  optimization of bio-methanol production from goat manure in single stage bio-reactor.  - intenational journal of hydrogen energy.  9031-9043. 

mod alif afife dzulfakar, siti masrinda tasirin dan noorhisham tan kofli.  (2016).  observation on the soaking water and particles size changes during cool powder (bedak sejuk) production.  - journal of engineering science and technology.  714-721. 

mohd alif afife dzulfakar, siti masrinda tasirin dan noorhisham tan kofli.  (2016).  surface morphological studies of the fermented rice grains during bedak sejuk production.  - international journal of applied engineering research.  10067-10070. 

alif afife dzulfakar, noorhisham tan kofli dan siti masrinda tasirin.  (2016).  prelimanary observation on microbial population in the soaking water during bedak sejuk production.  - indian journal of science and technology.  1-4. 

dzulfakar m.a.a., kofli n.t., tasirin s.m..  (2016).  physicochemical properties, heavy metal content and microbial limit test of bedak sejuk.  - indian journal of science and technology.  1-6. 

mohd alif afife dzulfakar, noorhisham tan kofli dan siti masrinda tasirin.  (2016).  physiochemical properties, heavy metal content and microbial limit test of bedak sejuk.  - indian journal of sceince and technology.  1-6. 

m. anitha, s.k. kamarudin, n.t. kofli.  (2016).  the potential of glycerol as a value-added commodity.  - chemical engineering journal.  119-130. 

hassimi abu hasan, siti rozaimah sheikh abdullah, noorhisham tan kofli, shy jay yeoh.  (2016).  interaction of environmental factors on simultaneous biosorption of lead and manganese ions by locally isolated bacillus cereus.  - journal of industrial and engineering chemistry.  295-305. 

zuraifah minhat, mohamad syukri ab rahaman, mohd sobri takrif, noorhisham tan kofli.  (2016).  differentiation of biomass composition between isolated and commercial strains of microalgae.  - journal of engineering science and technology.  737-744. 

zuraifah minhat, muhammad syukri abd rahaman, mohd sobri takriff and norhisham tan kofli.  (2015).  carbon dioxide sequestration by locally isolated and commercial strain of microalgae.  - journal of pure and applied microbiology.  539-543. 

hassimi abu hasan, siti rozaimah sheikh abdullah, siti kartom kamarudin and noorhisham tan kofli.  (2015).  effective curves of completing simultaneous ammonium and manganese removal in polluted water using a biological aerated filter.  - journal of industrial and engineering chemistry.  153-159. 

m. anitha, s.k. kamarudin, n.s. shamsul, n.t. kofli.  (2015).  determination of bio-methanol as intermediate product of anaerobic co-digestion in animal and agriculture wastes.  - international journal of hydrogen energy.  11791-11799. 

zahirah minhat, mohammad syukri abd rahaman, mohd sobri takriff dan noorhisham tan kofli.  (2015).  carbon dioxide sequestration by locally isolated and commercial strain of microalage.  - journal of pure and applied microbiology.  -. 

mohd a.a.dzulfakar, noorhisham t. kofli dan siti m. tasirin.  (2015).  an initial study on the influence of natural fermentation on particle size changes during the production of bedak sejuk.  - journal of engineering science and technology.  71-78. 

mohd alif afife dzulfakar, noorhisham tan kofli dan siti masrinda tasirin.  (2015).  microbial population and degradation on rice granules during fermentation of bedak sejuk.  - journal of pure and applied microbiology.  513-518. 

nur tantiyani ali othman, siti rozaimah sheikh abdullah, mohd sobri takriff, norliza abd rahman, noorhisham tan kofli, manal ismail, siti zulaikha hassan.  (2015).  achievement of programme outcomes through integrated project as an innovative approach from a teaching and learning perspective.  - journal of engineering science and technology.  61-73. 

n.s.shamsul, s.k.kamarudin, n.a.rahman, n.t.kofli.  (2014).  an overview on the production of bio-methanol as potential renewable energy.  - renewable & sustainable energy reviews.  33:578-588. 

nurleyna yunus, jamaliah md jahim, nurina anuar, siti rozaimah s. abdullah, norhisham t. kofli.  (2014).  batch fermentative hydrogen production utilising sago (metroxylon sp.) starch processing effluent by enriched sago sludge consortia.  - international journal of hydrogen energy.  19937-19946. 

hassimi abu hasan, siti rozaimah sheikh abdullah, siti kartom kamarudin, noorhisham tan kofli and nurina anuar.  (2014).  kinetic evaluation of simultaneous cod, ammonia and manganese removal from drinking water using a biological aerated filter system.  - separation and purification technology.  130:56-64. 

haider mohammed owaid, roszilah hamid, siti rozaimah sheikh abdullah, noorhisham tan kofli, mohd raihan taha.  (2013).  physical and mechanical properties of high performance concrete with alum sludge as partial cement replacement.  - jurnal teknologi (sciences & engineering).  105-12. 

hassimi abu hasan, siti rozaimah sheikh abdullah, siti kartom kamarudin, noorhisham tan kofli, nurina anuar.  (2013).  simultaneous nh4+-n and mn2+ removal from drinking water using a biological aerated filter system: effects of different aeration rates.  - separation and purification technology.  118:547-556. 

hassimi abu hasan, siti rozaimah sheikh abdullah, siti kartom kamarudin, noorhisham tan kofli.  (2013).  on-off control of aeration time in the simultaneous removal of ammonia and manganese using a biological aerated filter system.  - process safety and environmental protection.  91:415-422. 

norliza abd rahman, noorhisham tan kofli.  (2013).  effect of peers assessment and short report in year iii laboratory course.  - international education studies.  6(6):23-27. 

hassimi abu hasan, siti rozaimah sheikh abdullah, noorhisham tan kofli, siti kartom kamarudin.  (2012).  removal of nh4+-n ion in drinking water treatment using locally isolated heterotrophic nitrifier.  - desalination and water treatment.  50:294-301. 

hassimi abu hasan, siti rozaimah sheikh abdullah, siti kartom kamarudin and noorhisham tan kofli.  (2012).  effective microbes for simultaneous bio-oxidation of ammonia and manganese in biological aerated filter system.  - bioresource technology.  124:355-363. 

siti hajar, m.d, noorhisham, t.k. & nurina, a..  (2012).  yeast identification from domestic ragi for food fermentation by pcr method.  - international research food journal.  19(2):775-777. 

ooi chong hoe, siti rozaimah sheikh abdullah, norhisham tan kofli, mushrifah idris.  (2012).  analysis of plant and soil from alum sludge farm of drinking water treatment plant.  - research journal of environmental toxicology.  6(5):184-197. 

hassimi abu hasan, siti rozaimah sheikh abdullah, noorhisham tan kofli, siti kartom kamarudin.  (2012).  isotherm equilibriums of mn2+ biosorption in drinking water treatment by locally isolated bacillus species and sewage activated sludge.  - journal of environmental management.  111:34-43. 

noorhisham tan kofli, syarifah najiha badar, norliza abd rahman, mohd shahbudin mastar & siti rozaimah sheikh abdullah.  (2012).  open ended laboratory (oel) assignment as tool imparting generic skills for engineering students.  - asian social science journal.  18(16):146-152. 

hassimi abu hasan, siti rozaimah sheikh abdullah, siti kartom kamarudin and noorhisham tan kofli.  (2011).  problems of ammonia and manganese in malaysian drinking water treatments.  - world applied sciences journal.  12(10):1890-1896. 

hassimi abu hasan, siti rozaimah sheikh abdullah, siti kartom kamarudin and noorhisham tan kofli.  (2011).  response surface methodology for optimization of simultaneous cod, nh4+?n and mn2+ removal from drinking water by biological aerated filter.  - desalination.  275(1-3):50-61. 

siti rozaimah sheikh abdullah, mohd sobri takrif, abu bakar mohammad, noorhisham tan kofli, manal ismail, masturah markom.  (2011).  integrated project: comparative analysis of lecturers and students assessment of program outcomes.  - wseas transaction on advances in engineering education.  8(2): 31-52. 

hassimi abu hasan, siti rozaimah sheikh abdullah, siti kartom kamarudin, noorhisham tan kofli.  (2011).  effect of organic carbon loading (ocl) on simultaneous nh4+-n and mn2+ removal in drinking water using a baf system.  - environmental engineering and management journal.  10(11):1733-1742. 

m.m. zain, n.t. kofli and s.r.s. abdullah.  (2011).  bioethanol production by calcium alginate-immobilised st1 yeast system: effects of size of beads, ratio and concentration.  - the international islamic university malaysia engineering journal.  12(4):11-19. 

masniroszaime mohd zain, noorhisham tan kofli and siti rozaimah sheikh abdullah.  (2011).  immobilised sarawak malaysia yeast cells for production of bioethanol.  - pakistan journal of biological sciences.  14(9):526-532. 

abd rahman, n., sam, yet and noorhisham, t.k..  (2011).  comparison study of experimental and simulation temperature data in the esterification process of palm fatty acid distillate (pfad) in a fluidised reactor.  - journal - the institution of engineers, malaysia.  Vol. 72, No.3, September. 

norliza abdul rahman, sam yet and noorhisham tan kofli.  (2011).  comparison study of experimental and simulation temperature data in the esterification process of palm fatty acid distillate 9pfad) in fluidised reactor.  - iem journal.  72 (3) : 56-61. 

hassimi abu hasan, siti rozaimah sheikh abdullah, siti kartom kamarudin and noorhisham tan kofli.  (2010).  recognition of relevant orp, ph and do bending points in ammonia removal from drinking water through on-line baf system.  - international journal of chemical engineering.  2010:1-7. 

h. a. hasan, s. r. s. abdullah, n. t. kofli and s. k. kamaruddin.  (2010).  biosorption of manganese in drinking water by isolated bacteria.  - journal of applied sciences.  10(21):2653-2657. 

abdullah s., rahmat r.a.a.o.k., zaharim a., muhamad n., deros b.m., kofli n.t., abdullah m., mohd. tahir m., muchtar a., azhari c.h..  (2009).  implementing continual review of programme educational objectives and outcomes for obe curriculum based on stakeholders` input.  - european journal of scientific research.  29(1):89-99. 

omar m.z., kofli n.t., mat k., darus z.m., osman s.a., rahman m.n.a..  (2009).  measuring the outcomes from industrial training program.  - european journal of social sciences.  8(4):581-588. 

mohd nizam ab rahman, mohd zaidi omar, norhisham tan kofli, kamaruzaman mat, siti aminah osman, zuhairusse m darus.  (2009).  assessment of engineering students perception after industrial training placement.  - european journal of social sciences.  8(3):420-431. 

takriff, m. s., abdullah, s. r. s., tan kofli, n. h. & nordin, d.  (2007).  integrated delivery in chemical engineering education.  - world transaction on engineering and tecnology education.  6(2): 287-290. 

noorhisham tan kofli, keisuke nagahisa, hiroshi shimizu & suteaki shioya.  (2006).  responses of different strains of saccharomyces cerevisiae to osmotic stress = tindak balas pelbagai strain saccharomyces cerevisiae terhadap tekanan osmotik.  - sains malaysiana.  35(2):9-15. 

mohd sahaid kalil, zainatul `asyiqin shamsuddin and noorhisham tan kofl.  (2005).  anaerobic biotransformation of guaiacol to catechol by growing and non-growing harvested cells of acetobacterium woodii.  - pakistan journal of biological sciences.  8(12):1663-1666.