ภูผิวผัน อ., หอมสิน น. and คุณากรพิทักษ์ ป. (2019) “The Administrative Factors Affecting School Internal Supervision of Administrators under Udon Thani Primary Educational Service Area Office 3”, Journal of Humanities and Social Sciences, Rajapruk University, 5(supplement), pp. 59–75. Available at: https://so03.tci-thaijo.org/index.php/rpu/article/view/231875 (Accessed: 26 April 2024).