Mohammed Lamine, Otmani, and Ahmed Mahmodi. “The Innovation in the Elements of the Marketing Mix and Its Impact on the Preferences of the Algerian Consumer for Local and Foreign Smartphones.”. Dirassat Journal Economic Issue 14, no. 1 (January 18, 2023): 67-84. Accessed April 27, 2024. http://journals.lagh-univ.dz/index.php/djei/article/view/2847.