Sari, I., E. Mulatsari, E. Mumpuni, and A. Purwanggana. “The Demineralization Optimization for Chitosan Synthesis from Crab Shell Waste (Portunus Pelagicus)”. JOPS (Journal Of Pharmacy and Science), Vol. 7, no. 2, June 2024, pp. 73-77, doi:10.36341/jops.v7i2.4653.