Boonnoun, P., A. Maneesiri, and C. Pattamaprom. “Production of biodiesel from Palm Fatty Acid Distillate”. Science & Technology Asia 13, no. 4 (October 28, 2015): 32–37. accessed January 7, 2026. https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/41418.