Berroudj, Kamel, Amina Chafaa, and Abdelmounaim Mefti. “Educational Competencies As Predictors of Academic Self-Concept Among Secondary Physical Education Teachers”. Sustainability and Sports Science Journal 3, no. 4 (August 26, 2025): 249–257. Accessed October 27, 2025. http://sssj.kineticeditorial.com/index.php/sssj/article/view/educational-competencies-academic-self-concept-pe-teachers.