Suebpongsakorn, A., Khaekhai, C., Prakeetawathin, T., Rungpromprathan, W. and Saeing, S. 2019. A Measurement of Operation Efficiency of the Commercial Banks in Thailand by the Data Envelopment Analysis Method. University of the Thai Chamber of Commerce Journal Humanities and Social Sciences. 36, 3 (May 2019), 59–78.