T. Le Van, T. Phạm Hồng, D. Nguyễn Văn, H. Nguyễn Thị Xuân, and N. Phạm Hồng, “Treatment of amoni in wastewater by continuous column model using zeolite A synthesized from coal fly ash”, JMST, no. VITTEP, pp. 9–14, Dec. 2022.