BEN SLIMEN, Rihab, BELHAJ, Fethi, HADRICHE, Manel and GHROUBI, Mohamed. BANKING EFFICIENCY: A COMPARATIVE STUDY BETWEEN ISLAMIC AND CONVENTIONAL BANKS IN GCC COUNTRIES. Copernican Journal of Finance & Accounting. Online. 20 June 2022. Vol. 11, no. 1, pp. 89-106. [Accessed 15 January 2025]. DOI 10.12775/CJFA.2022.005.