The role of operational management in developing the efficiency of administrative performance in some sports clubs in Iraq. Damu Journal of Sport Sciences, [S. l.], v. 3, n. 4, p. 153–176, 2026. DOI: 10.64002/qsvk8j60. Disponível em: https://damujss.com/index.php/home/article/view/601.. Acesso em: 31 aug. 2026.