Mormon PK, Mangkhang C, Dibyamandala J. Quality of life of the aging in Fang District Chiang Mai province by using the principle of the BIT 4. JSBA [internet]. 2021 Nov. 29 [cited 2026 Mar. 6];6(11):192-208. available from: https://so04.tci-thaijo.org/index.php/JSBA/article/view/254499