Gyawali, S., Techato, K., Yuangyai, C. and Monprapussorn, S. (2013) “Assessment of Surface Water Quality Parameters and Their Variations for Effective River Monitoring System: A Case Study of U-tapao River Basin”, Applied Environmental Research, 34(2), pp. 89–106. available at: https://ph01.tci-thaijo.org/index.php/aer/article/view/9748 (accessed: 27 August 2026).