The Effect of Circuit Training on Cardivascular Endurance of High School Boys. Global Journal of Human-Social Science, [S. l.], v. 13, n. A7, p. 1–6, 2013. Disponível em: https://www.socialscienceresearch.org/index.php/GJHSS/article/view/856. Acesso em: 30 sep. 2026.