Khouzani, M. N., S. Aroufzad, and M. A. Nadi. “Identifying the Underlying Factors Affecting the Development of Participation of Student Sport in Iran”. Journal of Human Sport and Exercise, vol. 15, no. 2proc, May 2020, pp. S379-S392, https://www.jhse.ua.es/article/view/2020-v15-n2-proc-underlying-factors-affecting-development-partic.