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.). TU Journal [internet]. 2024 Apr. 25 [cited 2026 Aug. 26];43(1):81-98. available from: https://so05.tci-thaijo.org/index.php/tujo/article/view/272615