Panjaitan, Jabosar Ronggur Hamonangan. “Simulation of Biodiesel Production from Waste Cooking Oil Using Methanol-Activated CaO Recycling Catalyst: Kinetic and Techno-Economic Evaluation ”. Eksergi 23, no. 1 (January 16, 2026): 23–31. Accessed January 25, 2026. https://jurnal.upnyk.ac.id/index.php/eksergi/article/view/15839.