ภูมิพัฒน์ เสน่ห์พูด. “WORKING EFFICIENCY PRACTICALITY OF OFFICERS IN THE SUB-DISTRICT ORGANIZATION OF MEUNGDISTRICT, NONGKHAI PROVINCE”. Journal of MCU Social Science Review, vol. 6, no. 2-05, May 2020, pp. 627-38, https://so03.tci-thaijo.org/index.php/jssr/article/view/242594.