Saengson, S., S. Pongpinyoopas, and K. Jamjang. “Strategies for Managing Early Childhood Education in Schools Under Kamphaeng Phet Primary Educational Service Area Office 1 and Office 2”. Humanities and Social Sciences Journal of Pibulsongkram Rajabhat University, vol. 17, no. 2, Nov. 2023, pp. 587-03, doi:10.14456/psruhss.2023.42.