ZAVVAR MOUSAVI, H., and A. ASGHARI. “Removal of Heavy Metal Ions in Wastewater by Semnan Natural Zeolite”. Asian Journal of Chemistry 21, no. 4 (March 30, 2010): 2881–2886. Accessed July 6, 2024. https://asianpubs.org/index.php/ajchem/article/view/12399.