Boonprawes, S., B. Chalapirom, and P. Siribanpitak. “Quality Management System and International Quality Criteria in Higher Education”. Journal of Multidisciplinary in Social Sciences, vol. 15, no. 1, Apr. 2019, pp. 52-57, https://so03.tci-thaijo.org/index.php/sduhs/article/view/186690.