David, V. D., A. Bahar, and Z. Abdul Aziz. “Transcritical Flow Over a Bump Using Forced Korteweg-De Vries Equation”. MATEMATIKA: Malaysian Journal of Industrial and Applied Mathematics, vol. 34, no. 3, Dec. 2018, pp. 179-87, doi:10.11113/matematika.v34.n3.1149.