S. Namsrithan, “The Performance of The Village Headmen and Sub-District Chief In Mueang Khon Kaen District, Khon Kan: The Performance of The Village Headmen and Sub-District Chief In Mueang Khon Kaen District, Khon Kan”, JMBR_sothorn, vol. 2, no. 2, pp. 90–104, Dec. 2022.