Ngoc Tu Nguyen, Quang Huy Trinh, Thi Thu Ha Nguyen, Van Duc Tran, Thi Thuy Hang Ho. Study on the modification of fly ash as a coagulant. VJSTE [Internet]. 2023Jun.15 [cited 2026Jul.15];65(2):20-5. Available from: https://vietnamscience.vjst.vn/index.php/vjste/article/view/1133