สฤษฎิ์ศิริ พญ.สุธี. “Health Status of the Elderly in Primary Care, Bangkok”. INSTITUTE FOR URBAN DISEASE CONTROL AND PREVENTION JOURNAL 5, no. 1 (September 5, 2020): 63–82. Accessed May 3, 2024. https://he01.tci-thaijo.org/index.php/iudcJ/article/view/243417.