MUADIFAH, A. .; SANTOSO, A.; NGIBAD, K.; MARTHA, R. D.; KHOLIFAH, S. N. Calcium Reduction Using Variations of Thickness and Retention Time of Cocoa Shell Activated Carbon. Chempublish Journal, [S. l.], v. 7, n. 1, p. 42-53, 2023. DOI: 10.22437/chp.v7i1.24768. Disponível em: https://online-journal.unja.ac.id/chp/article/view/24768. Acesso em: 5 jul. 2024.