M.S. Khidr, Khidr, خضر, Hanin T. Jasim, حنین, Hikmat Mustafa, and حکمت. 2025. “Unsteady Flow to Viscous Thin Films on a Vertical Surface”. AL-Rafidain Journal of Computer Sciences and Mathematics 8 (2):143-49. https://rjps.uomosul.edu.iq/index.php/csmj/article/view/19609.