1. Live Long and prosper: aging in East Asia and pacific;World Bank,2016
2. Statistics on the aged in 2018;Statistics Korea,2018
3. World population ageing 2019: highlights;United Nations Department of Economic and Social Affairs (UN DESA),2019
4. Future of long-term care financing for the elderly in Korea;Kwon;Journal of aging & social policy,2008
5. Statistics on the aged in 2008;Statistics Korea [KOSTAT],2008