Masood Mafooz, a Muhammad Tahir NazeerQasid Naveed, Muhammad Badar Habib2, Badar Mohy ud Din, Muhammad Zia ul Haq,. «Measuring Physical Fitness Among Secondary School Students of Ages Between 10 to 15 Years». Opción 360 (1): 3451-3470. Accedido abril 30, 2024. https://www.produccioncientificaluz.org/index.php/opcion/article/view/32971.