Khieoyan K, Niyamabha A. Administrative factors affecting the excellence of academic in small schools, Phra Nakhon Si Ayutthaya Secondary Educational Service Area Office . jma [internet]. 2024 Dec. 4 [cited 2026 Aug. 28];11(3):319-32. available from: https://so04.tci-thaijo.org/index.php/JMA/article/view/272691