Nguyen, L., Nguyen, D., & Tran, N. (2009). STUDY ON GRANULATION OF ACTIVATED SLUDGE USING SEQUENCING BATCH AIRLIFT REACTOR FOR COD AND AMMONIA REMOVAL. Science and Technology Development Journal, 12(2), 39-50. https://doi.org/https://doi.org/10.32508/stdj.v12i2.2205