Abdulla, A. Q. and Al-jarjay, A. H. (2022) “The role of visionary leadership in reducing Functional Deviation An exploratory study of the opinions of a sample of administrative leaders for university of Mosul”, Tikrit Journal of Administrative and Economic Sciences, 18(60, 2), pp. 824–836. doi: 10.25130/tjaes.18.60.2.45.