Sri-Amporn, Winai, and Kittiwet Kuntiyawichai. “Determination of Roughness Coefficient of chi River and Its Flood Plain”. Engineering and Applied Science Research 32, no. 5 (February 21, 2013): 663–674. accessed August 31, 2026. https://ph01.tci-thaijo.org/index.php/easr/article/view/6222.