edited by Frank Freidel and Norman Pollack
Rand McNally, 1963
Buku Teks
Jordan, Winthrop D., author
McDaugal, Littell, 1992
Buku Teks
Alexander, Herbert E.
Burgess Publishing Company, 1972
Buku Teks
Adams, James Truslow, author
1946
Buku Referensi
Joy Hakim, author
Oxford University Press, 2003
Buku Teks