editor Philip Cam
Korean National Commission for UNESCO, 2003
Buku Teks
Winch, Christopher, author
Routledge, 2008
Buku Teks
Derry, Jan, author
Wiley-Blackwell, 2013
Buku Teks
Fisher, James Earnest
Yonsei University Press, 1970
Buku Teks
edited by Frank B. Murray
University Park Press, 1979
Buku Teks