Katie, Halla Nasser, and Alaa Abdul Karim Hadi Al-Baldawi. “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, no. 5proc (December 23, 2019): S2304-S2317. Accessed May 19, 2024. https://www.jhse.ua.es/article/view/2019-v14-n5-proc-management-efficiency-aviation-insurance-portfo.