Ong, Mei Yin, Bello Salman, Nor-Insyirah SAL, Refal Hussein, and Saifuddin Nomanbhay. “A Preliminary Experiment of Non-Catalytic Transesterification: Thermal Analysis of Palm Oil and Biodiesel at Different Ratio”. International Journal of Engineering and Technology 7, no. 4.35 (November 30, 2018): 190–193. Accessed August 17, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/22362.