อรุณพงศ์ศิริ เ. (2015) “The Elderly,S Quality of Life Development, Thasala Subdistrict Administrative Organization, Manchakhiri District, Khonkaen Province ”, Journal of Graduate MCU KhonKaen Campus, 2(1), pp. 67–78. available at: https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/243104 (accessed: 14 October 2026).