Salim, Badreldin F., and Mohamed H. Mahmoud. “Islamic Finance: Is It a Time to Be Considered As an Alternative During Financial Crisis Times? A Comparative Study in Gulf Cooperation Council”. International Journal of Economics and Financial Issues, vol. 6, no. 3, July 2016, pp. 1123-31, https://mail.econjournals.com/index.php/ijefi/article/view/2104.