Rosna, A. Zaeni, L. Kadidae, and Zainal Syam Arifin, “Optimizing Sand-Based Biofilm Biosorption for Copper (Cu) Mitigation: Mechanisms, Optimal Conditions, and Environmental Implications”, J. Pharm. Nat. Sci., vol. 2, no. 1, pp. 37–46, Mar. 2025, doi: 10.70392/jpns.v2i1.3746.