1. H Kim, "Factors Determining of the Choice and Patterns of Migration of the Old", College of Engineering, Seoul National University, 2012.
2. Consumer city
3. Statistics Korea, "2020 Statistics on the Aged", http://kostat.go.kr/ [accessed: Feb 9, 2022]
4. H. J. Park, "The Relationship between Income Level and Health-Related Quality of Life in Korea", Korean Association of Health and Medical Sociology), Vol. 31, No. 1, pp. 107-125, 2012.
5. Korean Law Information Center, https://www.law.go.kr/ [accessed: Feb. 9, 2022]