Tipkamontanakul W, Tonwimonrat S. The Empowering of Administrator and Motivation in Teacher Performance under The Secondary Educational Service Area Office 9. rpujournal [Internet]. 2021 Apr. 25 [cited 2024 May 19];7(1):255-71. Available from: https://so03.tci-thaijo.org/index.php/rpu/article/view/251683