Mohamed Othman, Filzah, Nor Aiza Mohd-Zamil, Siti Zaleha Abdul Rasid, Amin Vakilbashi, and Mozhdeh Mokhber. 2016. “Data Envelopment Analysis: A Tool of Measuring Efficiency in Banking Sector”. International Journal of Economics and Financial Issues 6 (3):911-16. https://econjournals.com/index.php/ijefi/article/view/2246.