Kesselman, Mark
European Political in Transition
D.C. Health an Company, 1987
 Buku Teks
Busey, James L.
Latin America: political institutions and processes
Random House, 1968
 Buku Teks
European political co-operation (EPC)
Wiesbadener Graphische Betriebe GmbH, 1982
 Buku Teks
Cook, Chris
European political facts 1848 -1918
Macmillan, 1978
 Buku Referensi
Etzioni, Amitai
The active society : a theory of societal and political processes
Macmillan, 1967
 Buku Teks