JINNAPAT , A.; RATTANASING, A. A study of absorption capacity of zinc ions onto coffee residue activated carbon. NKRAFA JOURNAL OF SCIENCE AND TECHNOLOGY, [S. l.], v. 17, n. 2, p. 69–78, 2021. Disponível em: https://ph02.tci-thaijo.org/index.php/nkrafa-sct/article/view/245521. Acesso em: 16 sep. 2026.