YANTI, P. H. Analisis kapasitas tukar kation birnessite. CHEMISTRY PROGRESS, [S. l.], v. 7, n. 1, 2019. DOI: 10.35799/cp.7.1.2014.4847. Disponível em: https://ejournal.unsrat.ac.id/v3/index.php/chemprog/article/view/4847. Acesso em: 28 apr. 2024.