Boobpamala, Boonlua. 2022. “Participation of People in Development of Nong Bua Subdistrict Municipality, Mueang Udon Thani District Udon Thani Province”. Journal of Modern Learning Development 7 (4):342-51. https://so06.tci-thaijo.org/index.php/jomld/article/view/254677.