Fadhli Ahmad, M., M. Sofiyan Suliman, and . . “Deficiency of Finite Difference Methods for Capturing Shock Waves and Wave Propagation over Uneven Bottom Seabed”. International Journal of Engineering & Technology, vol. 7, no. 3.28, Aug. 2018, pp. 97-101, doi:10.14419/ijet.v7i3.28.20977.