Pradubsert, R. , Phoojomjit , P. and Duangchatom, K. 2024. The Development of Happy Organization Indicators of Private Vocational Colleges in The Northeast: . Interdisciplinary Academic and Research Journal . 4, 2 (Apr. 2024), 785–800. DOI:https://doi.org/10.60027/iarj.2024.274838.