Jo, Yong-dal, author
Gimmyoungsa, 2010
Buku Referensi
Lee, U-phyong, author
Prunsoop, 2008
Buku Teks
Yi, Sung-ho, 1961-, author
Purun Kil , 2009
Buku Teks
Horvath, Agnes, 1957-, author
Routledge, 2018
Buku Teks
Lipsey, Richard G., 1928-, author
Harper Collin, 1996
Buku Teks