YU, Xiquan. Sports Value and Practical Dilemmas of Agility and Change-of-Direction in Badminton-specific Competition. International Journal of Education and Social Development, [S. l.], v. 8, n. 3, p. 9–12, 2026. DOI: 10.54097/84s01g19. Disponível em: https://ijesd.com/index.php/ijesd/article/view/447. Acesso em: 17 oct. 2026.