Powee, S., Chaowakeeratipong, T., & Wongnaya, S. (2023). Development of Management Strategies for Fix It Centers under the Institute of Vocational Education in Northern Region 4. Humanities and Social Sciences Journal of Pibulsongkram Rajabhat University, 17(1), 194–208. https://doi.org/10.14456/psruhss.2023.14