Kim Byong Sik
International Publishers, 1970
Buku Teks
Sik, Kim Byong
International Publisher, 1970
Buku Teks
Yi, Cheol-sun, author
In'gan sarang, 2010
Buku Teks
National Unification Board, 1990
Buku Teks
Hak-Joon, Kim
Seoul National University Press , 1977
Buku Teks