Thi Tuyet Nhi, N., Thi Thuy Van, P., Thi Thao, N., Thi Thanh Truc, N., Le Truong Khanh Hung, T., Thi Ngoc Tay, D., Tan Nhut, H., & Trung Hiep, N. (2022). Optimization Removal of COD and Nitrogen at Different Hydraulic Retention Times in Biocord-Integrated Fixed-Film Activated Sludge System: 10.32526/ennrj/20/202100254. Environment and Natural Resources Journal, 20(4), 411–418. Retrieved from https://ph02.tci-thaijo.org/index.php/ennrj/article/view/246647