Rosna, Zaeni A, Kadidae L, Zainal Syam Arifin. Optimizing Sand-Based Biofilm Biosorption for Copper (Cu) Mitigation: Mechanisms, Optimal Conditions, and Environmental Implications. J. Pharm. Nat. Sci. 2025;2(1):37-46. doi:10.70392/jpns.v2i1.3746