Gh. Abdul-Ahad, J. and M.S. Khidr, K. 2005. Steady Flow in a Symmetric Thin Liquid Film on an Inclined Surface. AL-Rafidain Journal of Computer Sciences and Mathematics. 2, 2 (Dec. 2005), 51–65. DOI:https://doi.org/10.33899/csmj.2005.164088 .