كرميش عبدالمالك فريد. 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, [S. l.], v. 12, n. 04, p. 461–482, 2025. Disponível em: https://journals.univ-msila.dz/index.php/JOSC/article/view/1143. Acesso em: 4 feb. 2026.