SOULEF M, BRIK N, LAYES S. Necessary Life Skills for The Reinforcement of Positive Social Behavior in the Ninth- Grade’s Physical Education and Sport Curriculum . SSJ [Internet]. 2021Sep.30 [cited 2024Jul.22];15(2):327-3. Available from: http://journals.lagh-univ.dz/index.php/ssj/article/view/1574