Jassim Issa, Raya. “Construction and Protection of Secure Databases for the General Company for the Distribution of Petroleum Products in Mosul”. Journal of Education and Science 24, no. 1 (November 30, 1999): 163–178. Accessed September 10, 2025. https://edusj.uomosul.edu.iq/index.php/edusj/article/view/42031.