Kliewkamoltat, T., Phusri, S. and Duangchatom, K. (2019) “The Characteristics Development Model for the 21st Century Teacher in Private Schools in Chaiyaphum Province”, Journal of Graduate MCU KhonKaen Campus, 6(3), pp. 566–579. available at: https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/215733 (accessed: 13 September 2026).