H. Kratainoi and W. Boonyamanee, “ACTIVITY MODELS TO DEVELOP QUALITY OF LIFE AN ELDERLY AT HAT KRAD CHUAN CHUEN SCHOOL, HAT KRAD SUBDISTRICT, MUEANG DISTRICT, UTTARADIT PROVINCE”, JSC, vol. 10, no. 2, pp. 71–85, Feb. 2026.