Meiyola, Nada Karima, Hadistya Suryadri, and Sarah Fiebrina Heraningsih. “Impact of Temperature Variation on Biodiesel Yield and Biodiesel Quality from Waste Cooking Oil Catalyzed by Sulfonated Rubber Seed Shell Activated Carbon”. Jurnal Bio-Geo Material Dan Energi 6, no. 1 (February 20, 2026): 70–76. Accessed April 20, 2026. https://www.online-journal.unja.ac.id/bigme/article/view/52148.