Suajoy W, Tonwimonrat S. The Empowerment of Administrators and Teacher Professional Standards Performance in School under Singburi Primary Educational Service Area Office. J.Humanities Social Sciences [internet]. 2021 Oct. 28 [cited 2026 Sep. 13];4(3):1157-71. available from: https://so04.tci-thaijo.org/index.php/jmhs1_s/article/view/254130