Punnakanta, Luepol, and Wimon Sonchaem. “Estimation of non-point source BOD loading in urban area: A case study in Phetchaburi Municipality, Thailand”. Science, Engineering and Health Studies 12, no. 1 (April 29, 2018): 59–68. accessed August 27, 2026. https://li01.tci-thaijo.org/index.php/sehs/article/view/121326.