Modification of Coal Fly Ash Waste into Manganese-Oxide-Coated-Zeolite (MOCZ) to Adsorb Heavy Metal Ions Ni2+. Jurnal Kimia Valensi, [S. l.], v. 10, n. 1, p. 133 – 144, 2024. DOI: 10.15408/jkv.v10i1.35794. Disponível em: https://journal.uinjkt.ac.id/valensi/article/view/35794. Acesso em: 27 oct. 2025.