The world of ideas: essays for study
edited by Michael W. Alssid and William Kenney
Holt, Rinehart and Winston, 1966
 Buku Teks SO
The World of Ideas: essays for study
edited by Michael W. Alssid, William Kenney
Holt, Rinehart and Winston, 1964
 Buku Teks
London, Kurt
Backgrounds of conflict Ideas and Forms in World Politics
Macmillan, 1947
 Buku Teks SO
Ward, Barbara
Five ideas that change the world / Barbara Ward
W.W. Norton & Company, 1959
 Buku Teks SO
Evans, Graham
The dictionary of world politics : a reference guide to concepts, ideas, and institutions
Harvester Wheatsheaf, 1990
 Buku Referensi