PURWANTO, Clinton Velly; WAGIMAN, Wagiman; JUMERI, Jumeri. Effect of Addition of Palm Oil Empty Bunch Ash on Biogas Production from Palm Oil Mill Effluent. Agroindustrial Technology Journal, [S. l.], v. 7, n. 2, p. 18–27, 2023. Disponível em: https://atj.journal.unida.gontor.ac.id/index.php/atj/article/view/78. Acesso em: 23 jul. 2026.