Sasithon Srisub. (2025) The Promotion of Teachers' Work Happiness Basedon Sanggahavatthu 4 Principles under the Secondary Educational Service AreaOffice, Phra Nakhon Si Ayutthaya. <i>Journal of Philosophical Vision</i>, <i>30</i>(2), 48-68.Sasithon Srisub. "The Promotion of Teachers' Work Happiness Basedon Sanggahavatthu 4 Principles under the Secondary Educational Service AreaOffice, Phra Nakhon Si Ayutthaya". Journal of Philosophical Vision 30 (2025):48-68.Sasithon Srisub. The Promotion of Teachers' Work Happiness Basedon Sanggahavatthu 4 Principles under the Secondary Educational Service AreaOffice, Phra Nakhon Si Ayutthaya. Faculty of Religion and Philosophy Mahamakut Buddhist University:ม.ป.ท. 2025.