An-ard, N., and P. C. . (Auiwong). “Leadership of Educational Institution Administrators According to the Principles of Thitthuthammikut 4”. Journal of Graduate MCU KhonKaen Campus, vol. 11, no. 1, Mar. 2024, pp. 42-53, https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/266278.