Kedourie, Elie, author
Westview Press, 1987
Buku Teks
edited by Sohail H. Hashmi, Steven P. Lee
Cambridge University Press, 2004
Buku Teks
Currance, Phil
Missouri : Mosby, 2005,
Buku Teks
Currance, Phillip L.
Elsevier , 2005
Buku Referensi
Ussher, Arland
NY. American Library
Buku Teks