merzouki Y. Training and Development of Competencies as a Mechanism to Improve the Competitiveness of Organisations - TheCase of Sidal Group. mjrs [Internet]. 2021 Jun. 30 [cited 2024 Dec. 4];7(1):356-68. Available from: https://jiamcs.centre-univ-mila.dz/index.php/mjrs/article/view/708