ไพสิฐสกุลเกตุ จ. and ไทยใจดี ย. (2017) “THE SUPERLEADERSHIP OF SCHOOL ADMINISTRATORS UNDER UDON THANI PRIMARY EDUCATIONAL SERVICE AREA OFFICE 4”, Journal of Roi Et Rajabhat University, 11(2), pp. 43–52. available at: https://so03.tci-thaijo.org/index.php/reru/article/view/176334 (accessed: 12 September 2026).