Chae-jin YangBooksRetirement, work, and pensions in ageing KoreaPokchi ŭi wŏlliSahoe chŏngchʻaek ŭi che-3 ŭi kilChisik, chŏngbohwa sahoe wa kyoyuk pulpʻyŏngdŭngHanʼguk ŭi pokchi chŏngchʻaek kyŏlchŏng kwajŏngAuthor data: Open Library