Ahmad Roni, Kiagus, and Mardwita Mardwita. “Alcoholysis of Used Cooking Oil at High Pressure Using Wasted Catalyst Obtained from Crude Oil Processing Pertamina Unit III Palembang”. International Journal of Engineering & Technology 7, no. 4 (July 14, 2019): 6909–6911. Accessed December 22, 2024. https://sciencepubco.com/index.php/ijet/article/view/17931.