Beasley, Norman
Buell, Sloan and Pearce, 1952
Buku Teks
Niebuhr, Reinhold, author
Nisbet, 1947
Buku Teks
Kang, Man-Gil
Folkestone Global Oriental 2006
Buku Teks
Oberdofer, Don, author
Korea Basic Books, 2001
Buku Teks
Lee, Ki-baik, author
Soul lechokok, 1984
Buku Teks