Sri-Amporn, W. and Kuntiyawichai, K. (2013) “Determination of Roughness Coefficient of chi River and Its Flood Plain”, Engineering and Applied Science Research, 32(5), pp. 663–674. available at: https://ph01.tci-thaijo.org/index.php/easr/article/view/6222 (accessed: 31 August 2026).