KHAOUI, Afaf; SAHNOUNE, Abdelatif; BELKHEIR, Abdelkader. The contribution of healthy nutrition to developing pupils’ competence during physical education and sport lessons: A field study in secondary schools of the Ouled Derradj District, M’Sila Province. The International tax journal, [S. l.], v. 53, n. 1, p. 1–12, 2026. Disponível em: https://internationaltaxjournal.online/index.php/itj/article/view/490. Acesso em: 5 jan. 2026.