“Synthesis of Adsorbed Materials from Bentonite Co Dinh – Thanh Hoa, Application for Removal of Ammonium in Water Treatment”. Vietnam Journal of Catalysis and Adsorption 7, no. 2 (July 30, 2018): 117–121. Accessed February 28, 2025. https://jca.edu.vn/index.php/jca/article/view/648.