Kotayan, Patcharaporn, Patsri Srisuwan, and Supatcha Kengpanich. “Prevalence and Associated Factors of Depression Among Older Adults in Primary Care Unit at Phramongkutklao Hospital”. Journal of Preventive Medicine Association of Thailand 11, no. 1 (May 13, 2021): 30–49. Accessed April 19, 2024. https://he01.tci-thaijo.org/index.php/JPMAT/article/view/246300.