Mardanugraha, Eugenia, and Muliaman D. Hadad. “EVALUATION OF BANK MERGER IN INDONESIA: Lessons from Parametric Cost Function”. Buletin Ekonomi Moneter dan Perbankan 8, no. 1 (February 12, 2007): 117 -. Accessed June 8, 2023. https://www.bmeb-bi.org/index.php/BEMP/article/view/130.