วงษ์เงิน ช. “Analycy And Setting Task Competencies of Administrative Officers Sub - Distric Local Administration: A Case Study of Sub - Distric Local Administration of Muang Khon Kaen Distric, Khon Kaen Province”. Journal of Graduate MCU KhonKaen Campus, vol. 2, no. 1, June 2015, pp. 57-66, https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/243103.