Ali Mohammed Jawad Al-Saigh, et al. “Adaptive Leadership and Its Relationship With Professional Stress Among the Administrative Members of First Division Football Clubs in the Middle Euphrates Region”. Modern Sport, vol. 18, no. 2, June 2019, pp. 389-02, https://www.jcopew.uobaghdad.edu.iq/index.php/sport/article/view/1582.