Pimta N, Metheevachatra A, Uttaro PU. The Development of Personnel Administration Based on the Seven Principles of Sappurisa Dhamma for Administrators in Medium-Sized Schools Under the Nakhon Sawan Primary Educational Service Area Office 1: -. jma [internet]. 2026 Aug. 17 [cited 2026 Aug. 29];13(2):310-33. available from: https://so04.tci-thaijo.org/index.php/JMA/article/view/289935