Charef, Ouahiba. “The Effectiveness of the Promotional Mix Elements in Customer Perception of the Value ‘study of a Sample of Customers Mobilis’of the Product”. Finance and Business Economies Review 4, no. 1 (April 30, 2020): 108–125. Accessed July 27, 2024. https://jiamcs.centre-univ-mila.dz/index.php/fber/article/view/590.