Rodiah, Siti, Desti Erviana, Fachtur Rahman, and Anissa Widya Budaya. “Modified CaO Catalyst from Golden Snail Shell (Pomacea Canaliculata) for Transesterification Reaction of Used Cooking Oil”. Al-Kimia 8, no. 1 (June 29, 2020). Accessed November 23, 2024. https://journal3.uin-alauddin.ac.id/index.php/al-kimia/article/view/12173.