Chatngoen, Tamonwan. “Prevalence and Factors Associated With Depression in Elderly Patients With Chronic Disease in Family Medicine Outpatient Clinic, Nakornping Hospital”. Journal of Nakornping Hospital 12, no. 2 (December 21, 2021): 152–166. Accessed May 4, 2024. https://he01.tci-thaijo.org/index.php/jnkp/article/view/253079.