SARI, Rahmaida; YERIZAM, Muhammad; JUNAIDI, Robert. Pemanfaatan Fly Ash Batubara dalam Penurunan Kadar Besi dan Mangan Limbah Air Asam Tambang PT Bukit Asam. Innovative: Journal Of Social Science Research, [S. l.], v. 4, n. 5, p. 688–701, 2024. DOI: 10.31004/innovative.v4i5.13362. Disponível em: https://j-innovative.org/index.php/Innovative/article/view/13362. Acesso em: 31 may. 2026.