Kratainoi H, Boonyamanee W. ACTIVITY MODELS TO DEVELOP QUALITY OF LIFE AN ELDERLY AT HAT KRAD CHUAN CHUEN SCHOOL, HAT KRAD SUBDISTRICT, MUEANG DISTRICT, UTTARADIT PROVINCE. JSC [internet]. 2026 Feb. 27 [cited 2026 Oct. 13];10(2):71-85. available from: https://so06.tci-thaijo.org/index.php/JSC/article/view/290959