كرميش ع. ف. (2025) “Psychological hardness and its relationship to the quality of the teaching competencies of physical education and sports teachers. -A field study for physical education teachers in the city of M’sila”, sports creativity, 12(04), pp. 461–482. Available at: https://journals.univ-msila.dz/index.php/JOSC/article/view/1143 (Accessed: 4 February 2026).