Modification of CaO Catalyst From Chicken Eggshell With Wet Impregnation Method for Two-Stage Process of Biodiesel from Tamanu Oil. Jurnal Serambi Engineering, [S. l.], v. 10, n. 3, 2025. Disponível em: http://jse.serambimekkah.id/index.php/jse/article/view/1069. Acesso em: 27 aug. 2026.