N. Paengkamta, P. . Boonsed, T. . Jongmeesuk, R. . Ubollert, and T. . phutthipongchaicharn, “Efficiency of Service to People Ban Chan Subdistrict Administrative Organization Phutthaisong District Buriram Province”, IARJ, vol. 1, no. 4, pp. 1–12, Aug. 2021.