Vicerra, Paolo Miguel Manalang, and Wiraporn Pothisiri. 2020. “Cognition-Adjusted Dependency Ratio Among Later-Life Adults and the Role of Education”. Journal of Public Health and Development 18 (2). Bangkok, Thailand:37-57. https://he01.tci-thaijo.org/index.php/AIHD-MU/article/view/242021.