Kim, J., Castillejos-Petalcorin, C., Park, D., & Ruiz Estrada, M. A. (2020). Population Aging, Economic Growth, and Old-Age Income Support in Asia. Thailand and The World Economy, 38(3), 1–23. retrieved from https://so05.tci-thaijo.org/index.php/TER/article/view/240609