Rakchanyaban, U. ., P. . Prasartkul, M. D. . Hayward, V. . Thongthai, S. . Punpuing, and R. . Gray. “The Impact of Chronic Diseases on Disability-Free Life Expectancy Among the Thai Elderly Population”. Journal of Population and Social Studies [JPSS], vol. 13, no. 2, May 2023, https://so03.tci-thaijo.org/index.php/jpss/article/view/268614.