wutthilaksameerak P, Kaew arun S, Netsawang S, Tonnoncuiang P. Transformational Leadership in the 21st Century, Phra Nakhon Si Ayutthaya Primary Educational Service Area Office 1. JMHR [internet]. 2026 Mar. 30 [cited 2026 Sep. 3];10(1):289-302. available from: https://so04.tci-thaijo.org/index.php/JMHR/article/view/aaa-21