Viroonudomphol, D., P. Poomlittikul, S. . Tanyalugsanakul, and W. Angkamat. “Factors Associated With Self-Care Behavior Among Elders under COVID-19 at Ban Bang Khae Social Welfare Development and Center”. Interdisciplinary Research Review, vol. 17, no. 3, June 2022, pp. 7-11, https://ph02.tci-thaijo.org/index.php/jtir/article/view/246471.