Abdullah AA, Baqer AH. The role of sustainable leadership elements in promoting sustainable competitive advantages An analytical descriptive study at Zain Mobile Communications Company in Iraq. Tikrit J. Admin. Econ. Sci. [Internet]. 2020 Dec. 31 [cited 2026 Mar. 6];16(52, 1):515-29. Available from: https://www.tjaes.org/ojs/index.php/tjaes/article/view/1782