Yamtubtim, Uriwan, and Associate Professo Sakda Silapapisan. “Guidelines for Improving the Quality of Life of the Elderly to Promote Self-Care Ability in Don Kha Subdistrict Administrative Organization, U Thong District, Suphan Buri Province”. Journal of Interdisciplinary Development (Humanities and Social Sciences) 3, no. 1 (May 28, 2025): 23–32. accessed January 7, 2026. https://so07.tci-thaijo.org/index.php/IDHS/article/view/7976.