Haidar Sitie Rafidah, Prasetia, H. and Saefumillah, A. (2024) “Adsorption Study of Methylene Blue and Methyl Red on Activated Carbon from Silver Composite Using the Extract of Spent Coffee Grounds”, Jurnal Sains Materi Indonesia, 25(2), pp. 77–84. doi: 10.55981/jsmi.2024.924.