S. Al-Rawi, Ekhlass, and Muhannad Shallal. 2013. “Convergence Analysis of The Finite Difference Solution for Two Dimensions Coupled-Benjamin-Bona-Mahony System”. AL-Rafidain Journal of Computer Sciences and Mathematics 10 (2):129-41. https://doi.org/10.33899/csmj.2013.163480 .