Windiastuti, Riska T., and Tri Santoso. “Determination of Optimum PH and Contact Time from the Adsorption Process of Cu(II) Ions by Corn Cob (Zea Mays) Biomass”. Jurnal Akademika Kimia 9, no. 4 (November 30, 2020): 224–229. Accessed May 2, 2024. http://jurnal.fkip.untad.ac.id/index.php/jak/article/view/600.