yi chen, Tipanark P, Muanman P. Developping 21st Century Leadership Skills Indicators for School Administrators in Anshan Normal . Nimitmai Rev [Internet]. 2024 Apr. 23 [cited 2024 May 19];7(1):93-107. Available from: https://so04.tci-thaijo.org/index.php/nmrj/article/view/263317