Haider, M. A. . ., Raza, Q. ., Jameel, S. . and Pervaiz, K. . (2019) “A Comparative Study of Operational Efficiency of Pakistani and Malaysian Islamic Banks: Data Envelopment Analysis Approach”, Asian Economic and Financial Review , 9(5), pp. 559–580. doi: 10.18488/journal.aefr.2019.95.559.580.