Assawamaitree, Supattra, and Prathurng Hongsranagon. 2018. “The Association Between the Perception of Age-Friendly City Features and the Mental Health Status of the Elderly in Photaram District, Ratchaburi Province, Thailand”. Journal of Health Research 31 (Suppl. 2):S137-142. https://he01.tci-thaijo.org/index.php/jhealthres/article/view/114417.