Anwar Muhammad Sheet, R., and A. Abdul Rahim Khader Al-Khayyat. “Organizational Excellence Among Department Heads of Colleges at the University of Mosul According to Some Variables from the teachers’ Point of View”. Dirasat Mosiliya, vol. 16, no. 69, Nov. 2023, pp. 134-55, doi:10.33899/dm.2023.181108.