Simbolon, Ryandi, and Iis Siti. “Analysis of the Absorption Capacity of Zeolite Against NI(II) and Zn(II) Metal Ions”. Indonesian Journal of Advanced Research 2, no. 11 (November 30, 2023): 1477–1490. Accessed June 23, 2026. https://journal.formosapublisher.org/index.php/ijar/article/view/6682.