EFRILLIA, Fananda Sherly; FAJAR, Mutiara. Preparation of Activated Carbon From Kluwek (Pangium Edule) Shells as An Adsorbent for Effective Removal of Free Fatty Acid (FFA) from used cooking oil. Greensusmater, [S. l.], v. 2, n. 1, p. 12–16, 2025. DOI: 10.62755/greensusmater.2025.2.1.12-16. Disponível em: https://greensusmater.com/index.php/gsm/article/view/19. Acesso em: 7 jul. 2025.