Mohammed, Khalid K., and Safa Adres Abboudi. “The Effect of Sustainable Leadership in Achieving Proactive Behavior An Analytical Study of the Views of a Sample of Iraqi Private University Teachers”. Tikrit Journal of Administrative and Economic Sciences 17, no. 54, 2 (June 30, 2021): 350–371. Accessed September 15, 2026. https://www.tjaes.org/index.php/tjaes/article/view/1633.