Gani Rachim SA. Modification Of CaO Catalyst From Crab Shells With AICI3 Catalyst For Biodiesel Production Using Waste Cooking Oil As A Raw Material. presed [Internet]. 2026 Feb. 24 [cited 2026 Feb. 25];3(1). Available from: https://prosiding.nobel.ac.id/index.php/preced/article/view/140