Layadi issam, layadi abd elhakim. The relationship of delegation of authority to raising the performance of workers in the Directorate of Youth and Sports of the state of Souk Ahras. sej [Internet]. 2020Mar.31 [cited 2024Jul.22];2(1):178-91. Available from: http://journals.lagh-univ.dz/index.php/sej/article/view/968