eda yuhana-ariffin, siti syahraini sulaiman, noraisyah abdul kadir jilani, devika nokarajoo, nurul hidayah abdul razak, darfizzi derawi, siti aishah hasbullah.  (2022).  a new sensing material based on tetraaza/sba15 for rapid detection of copper(ii) ion in water.  - membranes.  1-15. 

norshakirah ahmad rashidi, elnida mustapha, yeow yean theng, noor azira abdul razak, najihah abdul bar, khairul basyar baharudin, darfizzi derawi.  (2022).  advanced biofuels from waste cooking oil via solventless and hydrogen-free catalytic deoxygenation over mesostructured ni-co/sba-15, ni-fe/sba-15, and co-fe/sba-15 catalysts.  - fuel.  1-12. 

noor azira abdul razak, nurul-asikin mijan, yun hin taufiq-yap, darfizzi derawi.  (2022).  production of green diesel via hydrogen-free and solventless deoxygenation reaction of waste cooking oil.  - journal of cleaner production.  1-16. 

murad bahadi, jumat salimon, darfizzi derawi.  (2021).  synthesis of di-trimethylolpropane tetraester-based biolubricant from elaeis guineensis kernel oil via homogeneous acid-catalyzed transesterification.  - renewable energy.  981-993. 

moneer alrashidi, darfizzi derawi, jumat salimon, mohamad firdaus yusoff.  (2020).  an investigation of physicochemical properties of nigella sativa l. seed oil from al-qassim by different extraction methods.  - journal of king saud university.  3337-3342. 

muhammad fadhli kamaruzaman, yun hin taufiq-yap, darfizzi derawi.  (2020).  green diesel production from palm fatty acid distillate over sba-15-supported nickel, cobalt, and nickel/cobalt catalysts.  - biomass and bioenergy.  1-8. 

khairul basyar baharudin, nurulhuda abdullah, taufiq yap yun hin, darfizzi derawi.  (2020).  renewable diesel via solventless and hydrogen-free catalytic deoxygenation of palm fatty acid distillate.  - journal of cleaner production.  1-11. 

khairul basyar baharudin, mahashanon arumugam, james hunns, adam f. lee, edwin mayes, yun hin taufiq-yap, karen wilson, darfizzi derawi.  (2019).  octanoic acid hydrodeoxygenation over bifunctional ni/al-sba-15 catalysts.  - catalysis science & technology.  1-8. 

murad bahadi, mohamad firdaus yusoff, jumat salimon, darfizzi derawi.  (2019).  optimization of response surface methodology by d-optimal design for synthesis of food-grade palm kernel based biolubricant.  - industrial crops and products.  1-12. 

khairul basyar baharudin, yun hin taufq-yap, james hunns, mark isaacs, karen wilson, darfzzi derawi.  (2019).  mesoporous nio/al-sba-15 catalysts for solvent-free deoxygenation of palm fatty acid distillate.  - microporous and mesoporous materials.  .