Ningtyas, Rani Pramudyo, Galu Murdikaningrum, Johannes Martua Hutagalung, and Sela Kong. “Characterization of Natural Zeolite Modified through High-Temperature Heating and KNO3 Addition”. CHEMICA: Jurnal Teknik Kimia 11, no. 2 (September 3, 2024). Accessed May 9, 2025. https://journal3.uad.ac.id/index.php/chemica/article/view/262.