อรุณพงศ์ศิริ เ. . “The Elderly,S Quality of Life Development, Thasala Subdistrict Administrative Organization, Manchakhiri District, Khonkaen Province”. Journal of Graduate MCU KhonKaen Campus, vol. 2, no. 1, June 2015, pp. 67-78, https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/243104.