Utilization of Adsorbent Cocoa Shell For Purification of Used Cooking Oil: Pemanfaatan Kulit Buah Kakao Sebagai Adsorben Dalam Pemurnian Minyak Goreng Bekas. Stannum : Jurnal Sains dan Terapan Kimia, [S. l.], v. 4, n. 1, p. 6–12, 2022. DOI: 10.33019/jstk.v4i1.2638. Disponível em: https://www.journal.ubb.ac.id/index.php/stannum/article/view/2638. Acesso em: 25 apr. 2026.