Singcha, Thanawat, Chanwit Hanrin, and Paitoon Puangyod. 2025. “The Skills of School Administrators Affecting a Happy Workplace in School under Nakhon Phanom Primary Educational Service Area Office 1”. Interdisciplinary Academic and Research Journal 5 (6). Maha Sara Kham, TH.:395-412. https://doi.org/10.60027/iarj.2025.286639.