Tonkittirattanakul, P., Sawasdee, V. and Hasin, S. 2020. Water Quality Improvement by Biological Process for Public Water Resource: A Case Study Bueng Kaennakorn. Journal of Applied Research on Science and Technology (JARST). 19, 2 (Aug. 2020), 25–33. DOI:https://doi.org/10.14456/rj-rmutt.2020.15.