P. Saejeng, S. Muenjaem, C. Puthaprasert, and P. Poungkaew, “The Administration Strategy for the Vocational Sector of Non-formal Private Schools, Chiang Mai Province”, Humanities and Social Sciences Journal of Pibulsongkram Rajabhat University, vol. 19, no. 1, pp. 10–25, Jun. 2025.