ธนะสีลังกูร จ. (2016) “Leadership Identity of School Principal : The Performance of Personality”, Journal for Developing the Social and Community . Bangkok, Thailand, 3(2), pp. 19–30. available at: https://so03.tci-thaijo.org/index.php/rdirmu/article/view/211357 (accessed: 8 December 2025).