Merzougui, Samir, Nacer Beggar, and Ali Houiche. 2022. “A Study of Some Variables Related to Headmasters Trends of Secondary Stages of EL-OUED about the Subject of Physical Education and Sports”. Al-Jamie Journal In Psychological Studies and Educational Sciences 7 (2):728-52. https://journals.univ-msila.dz/index.php/ajpe/article/view/8811.