ไวว่อง กัญชลี. “Nutrition Literacy of Elderly People in Region Health 2 under the COVID-19 Epidemic”. Thailand Journal of Health Promotion and Environmental Health 44, no. 3 (November 26, 2021): 51–64. Accessed October 7, 2026. https://thaidj.org/index.php/for4d/article/view/11377.