Ally, Zawadi. 2023. “AN EMPIRICAL INVESTIGATION ON EFFICIENCY OF DOMESTIC AND FOREIGN BANKS IN TANZANIA: NON-PARAMETRIC APPROACH: Bank Efficiency, Data Envelopment Analysis, Technical Efficient, Pure Efficient. Determinants of banks’ Efficiency”. Business Education Journal 7 (2). http://cbe.ac.tz/bej/index.php/bej/article/view/377.