Opasee, N., P. Phuphlaengthong, and S. Ratchakulchaipirom. “Management of a safe learning environment in the Child Development Sub-district Administrative Organization”. MCU Haripunchai Review, vol. 10, no. 2, June 2026, pp. 489-00, https://so04.tci-thaijo.org/index.php/JMHR/article/view/ba-036.