Ongardwanich, N. and Uppamaiathichai, T. (2024) “DEVELOPMENT OF THE PROFESSIONAL TEACHER SPIRITUALITY SCALE”, Journal of Education and Innovation, 26(3), pp. 285–299. available at: https://so06.tci-thaijo.org/index.php/edujournal_nu/article/view/269264 (accessed: 17 September 2026).