Khaoui, A., Sahnoune, A. and Belkheir, A. (2026) “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, 53(1), pp. 1–12. Available at: https://internationaltaxjournal.online/index.php/itj/article/view/490 (Accessed: 5 January 2026).