Ball, Joseph H
Collective security : the why and how / Joseph H. Ball
World Peace Foundation, 1943
 Buku Teks SO
International federation of democracies: proposed / compiled by Julia E. Johnsen
The H.W. Wilson, 1941
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Buzan, Barry
Regions and powers : the structure of international security
Cambridge University Press, 2003
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Padelford, Norman J.
The Dynamics of international politics
Macmillan, 1962
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Heater, Derek
Introduction to international politics : contemporary political studies
Harvester Wheatsheaf, 1992
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