srisamutr, sanya and Teanprapakun , P. (2023) “The Guidelines for Competency Enhancing of School Administrators in Transformational Leader of Dual Vocational Education in Lampang Province”, Journal of Modern Learning Development, 8(2), pp. 321–335. available at: https://so06.tci-thaijo.org/index.php/jomld/article/view/259172 (accessed: 11 October 2026).