Oliveros, Mary Grace M., Amiliza B. Baiting, ,Menchie G. Lumain, and Maria Theresa I. Cabaraban. “Ethanol-Based Biodiesel from Waste Vegetable Oil”. ASEAN Journal of Chemical Engineering 7, no. 1 (December 31, 2007): 83-87. Accessed July 17, 2024. https://journal.ugm.ac.id/v3/AJChE/article/view/7678.