Anifah, E. et al. 2024. Adsorption of iron and manganese from acid mine drainage by zalacca (Salacca zalacca) peel- activated carbon . Sustinere: Journal of Environment and Sustainability. 8, 1 (May 2024), 44–53. DOI:https://doi.org/10.22515/sustinere.jes.v8i1.366.