abdul–kareem, F. aizah and Al–Qaysi, B. J. (2019) “The Customer’s Realization of the Service quality provided by life insurance companies in Baghdad”, Opción, 35(89), pp. 307-322. Available at: http://www.produccioncientificaluz.org/index.php/opcion/article/view/31352 (Accessed: 6December2025).