الطيب جمعة. “Marketing Information System and Its Role in Improving the Effectiveness and Efficiency of Mobilis Corporation - Batna”. khazzartech الاقتصاد الصناعي 13, no. 1 (June 15, 2023): 534–514. Accessed November 11, 2026. https://journals.univ-batna.dz/index.php/khazzartech/article/view/2999.