Y. T. Teo, G. R. Mong, M. C. Chiong, C. T. Chong and J.-H. Ng 2022. Feasibility of Hydroprocessed Esters and Fatty Acids (HEFA) for Use as Automotive Fuels in the ASEAN Economic Blocs. Journal of the Society of Automotive Engineers Malaysia. 6, 1 (Dec. 2022), 12–18.