Tran, Q. L., T. Thi Tu, N. Dang Hai, N. Quang Hung, and D. Thanh Kien. “Assessment of Organics and Nitrogen Removal of Aerobic Granular Sludge With the Alternating Operation of Oxic – Anoxic – Oxic Phases and Different Feeding Mode in Sequential Batch Reactor”. SNRU Journal of Science and Technology, Vol. 13, no. 2, Apr. 2021, pp. 46-54,