“The Effect of CaO Catalyst Mass from Golden Snail Shell (Pomacea Canaliculata Lamarck) on Transesterification Reaction”. ALKIMIA : Jurnal Ilmu Kimia dan Terapan 4, no. 2 (April 1, 2021): 88–92. Accessed January 23, 2026. https://jurnal.radenfatah.ac.id/index.php/alkimia/article/view/8084.