TREATMENT COAGULANT AID DAN FILTRASI MANGANESE GREENSAND DALAM MENURUNKAN KADAR MANGAN DAN KLORIDA. WAKTU: Jurnal Teknik UNIPA, [S. l.], v. 17, n. 2, p. 37–44, 2019. DOI: 10.36456/waktu.v17i2.2135. Disponível em: https://jurnal.unipasby.ac.id/waktu/article/view/2135. Acesso em: 4 jun. 2026.