Hadhek, Zouhaier, Manel Frifita, and Mosbah Lafi. “The Determinants of Profit Efficiency of Islamic Banks Using Stochastic Frontier Analysis Approach”. International Journal of Economics and Financial Issues 8, no. 6 (November 5, 2018): 20–29. Accessed September 27, 2022. https://www.econjournals.com/index.php/ijefi/article/view/6996.