Kustomo, K., and S. J. . Santosa. “Studi Kinetika Dan Adsorpsi Zat Warna Kation (Metilen Biru) Dan Anion (Metil Orange) Pada Magnetit Terlapis Asam Humat: Adsorption and Kinetic Studies of Cationic (Methylene Blue) and Anionic (Methyl Orange) Dyes onto Magnetite Coated With Humic Acid ”. Jurnal Jejaring Matematika Dan Sains, vol. 1, no. 2, May 2020, pp. 64-69, doi:10.36873/jjms.v1i2.212.