THE EFFECT OF COMPLEX EXERCISES ON DEVELOPING VO2MAX EFFICIENCY FOR KARBALA YOUTH FOOTBALL CLUB PLAYERS. International Journal of Advance Research in Education & Literature (ISSN 2208-2441), [S. l.], v. 12, n. 1, p. 31–39, 2026. DOI: 10.61841/ctfhq885. Disponível em: http://jarel.org/index.php/EL/article/view/26. Acesso em: 19 may. 2026.