Proses Transesterification in Situ Dua Tahap Spent Bleaching Earth Menjadi Biodiesel. Jurnal Serambi Engineering, [S. l.], v. 11, n. 2, 2026. Disponível em: http://jse.serambimekkah.id/index.php/jse/article/view/1729. Acesso em: 24 apr. 2026.