Katie, H. N. and Al-Baldawi, A. A. K. H. (2019) “Management efficiency and its impact on managing the aviation insurance portfolio: An empirical study at the National Insurance Company in Iraq”, Journal of Human Sport and Exercise, 14(5proc), pp. S2304-S2317. Available at: https://www.jhse.ua.es/article/view/2019-v14-n5-proc-management-efficiency-aviation-insurance-portfo (Accessed: 19 May 2024).