Oxford University Press, 1995
Buku Teks
Eisenstadt, S. N. (Shmuel Noah), author
The Woodrow Lilson Center Press, 1999
Buku Teks
Boix, Carles, author
Cambridge University Press, 2003
Buku Teks
Padover, Saul K. (Saul Kussiel), author
Praeger, 1967
Buku Teks
Nagle, John D.
Sage Publications, 1999
Buku Teks