merzouki, Yasser. “Training and Development of Competencies As a Mechanism to Improve the Competitiveness of Organisations - TheCase of Sidal Group”. Milev Journal of Research and Studies 7, no. 1 (June 30, 2021): 356–368. Accessed December 4, 2024. https://jiamcs.centre-univ-mila.dz/index.php/mjrs/article/view/708.