ADHA, C. N.; ISTIQOMAH, U.; SAFITRI, A. W.; TARMINI, T. Adsorption of Ammonium Ion from Tofu Industrial Liquid Waste by Coconut Shell-Activated Carbon. Indonesian Journal of Chemistry and Environment, [S. l.], v. 2, n. 2, p. 15–22, 2021. DOI: 10.21831/ijce.v2i2.38190. Disponível em: https://jurnal.uny.ac.id/index.php/ijoce/article/view/38190. Acesso em: 14 may. 2025.