Hong, Chung-ok, author
Chang Jak iwa BT pyeong Sa, 1998
Buku Teks
Becker, Carl L. (Carl Lotus), 1873-1945, author
Silver Burdett, 1944
Buku Teks
UI-Press, 1988
Buku Referensi
Motley, John Lothrop, author
Cambridge University Press, 2012
eBooks
Durant, Will, author
Simon and Schuster, 1963
Buku Teks