Bui, T. D., Doan, D. H., Le, Q. D., & Phan, H. H. (2017). Study on Fabrication of Catalyst Based on Minerals of Tuyen Quang for Ozonization of Pulp Mill’s Effluents. Old Journal, 121, 129-133. https://jst.vn/index.php/old/article/view/903