Ngoc Xuan Dat Mai, Tan Le-Hoang Doan, Le Nguyen Bao Thu and Bach Thang Phan 2021. Evaluation of removal efficiency of Fe(III) and Al(III) ions in acid sulfate water using agarose-based magnesium oxide composite. Vietnam Journal of Science, Technology and Engineering. 63, 3 (Sep. 2021), 30-34. DOI:https://doi.org/10.31276/VJSTE.63(3).30-34.