Suebpongsakorn, Auttapol, Chintana Khaekhai, Tanong Prakeetawathin, Worachit Rungpromprathan, and Siriporn Saeing. 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):59-78. https://so06.tci-thaijo.org/index.php/utccjournalhs/article/view/187776.