Jumono, Sapto, Abdurrahman Abdurrahman, and Chajar Matari Fath Mala. “Market Concentration Index and Performance: Evidence from Indonesian Banking Industry”. International Journal of Economics and Financial Issues 7, no. 2 (April 3, 2017): 249–258. Accessed November 15, 2024. https://econjournals.net.tr/index.php/ijefi/article/view/4030.