edited by Korean National Commission for UNESCO
Hollym, 2003
Buku Referensi
Hope, A. D., author
Angus and Roberson Publishers, 1974
Buku Teks
Kim, Yun-sik, 1936-, author
Seoul Daehakgyo Chulpanbu, 2008
Buku Teks
Dragonfly Books, 1962
Buku Teks
Koroglu, Erol
Taurus Academic Studies, 2007
Buku Teks