Leonard, Jonathan Norton, author
Time-Life Books, 1967
Buku Teks
Stuart, Gene S.
Washington D.C. National Geographic Society 1988,
Buku Teks
Cho, Hae-il, author
Dong-su-Munhak-sa, 1990
Buku Teks
New York: W.W.Norton & Company, 1988,
Buku Referensi
edited by John Miksic
Archipelago Press, [date of publication not identified]
Buku Teks