“Glycerol Conversion from Biodiesel of Cooking Oil with Recydu Catalytic Cracking Catalyst At Pertamina ”. iJournals:International Journal of Software & Hardware Research in Engineering ISSN:2347-4890 10, no. 5 (मई 20, 2022). अंतिम उपयोग अक्टूबर 22, 2026. https://ijournals.in/journal/index.php/ijshre/article/view/119.