Boonsit, P., Dechakhamphu, K. and Udanont, J. 2024. Competency Development of Executive Personnel in Sub-district Administrative Organizations in Nakhon Phanom Province. Interdisciplinary Academic and Research Journal . 4, 5 (Oct. 2024), 365–380. DOI:https://doi.org/10.60027/iarj.2024.278083.