Wongrugsa, A., S. Kanjanawasee, and S. Ratchusanti. “The efficiency of an evaluation model for undergraduate vocational education programs: An application of multiple evaluation approaches”. Kasetsart Journal of Social Sciences, vol. 43, no. 3, July 2022, pp. 769–776, https://so04.tci-thaijo.org/index.php/kjss/article/view/260345.