Abdellatif, Amira, and Mohamed Lamine Labou. “National Program of Upgrade 20,000 Small and Medium-Sized Enterprises what’s New ? ”. Journal of Human Sciences 31, no. 4 (December 31, 2020): 463–475. Accessed April 20, 2024. https://revue.umc.edu.dz/h/article/view/3516.