Kunavetchakij, B. ., Laorodphan, N. ., & Sangngern, P. . (2020). Study on Personnel Potential for Preparation to Enter into a Happy Organization in the Lower Northern Cluster (Phitsanulok, Phichit, Phetchabun and Sukhothai). Journal of Politics and Governance, 10(1), 191–223. Retrieved from https://so03.tci-thaijo.org/index.php/jopag/article/view/241521