Runghairun, U. “Elderly Schools: The Quality of Life and Physical Fitness of the Elderly in Northeast Thailand (A Case Study of Elderly Schools in Uthai Sawan Sub-district, Nong Bua Lamphu Province, Na Mueang Sub-district Municipality, Roi Et Province, and Tabao Sub-district, Surin Province.)”. Thammasat Journal, vol. 43, no. 1, Apr. 2024, pp. 81-98, https://so05.tci-thaijo.org/index.php/tujo/article/view/272615.