Urmson, J.O.
Philosophical Analysis: its development between the two world wars
Clarendon Press, 1960
 Buku Teks SO
The Many faces of modern architecture : building in Germany between the World Wars
edited by John Zukowsky ; with contributions by Kennie Anne Laney-Lupton, Wojciech Lesnikowski, and John Zukowsky
Prestel-Verlag, 1994
 Buku Teks SO
Roskin, Michael G.
IR : the new world of international relations
Pearson/Prentice Hall, 2004
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McCoubrey, Hilaire
International organizations and civil wars
Brookfield Dartmouth , 1995
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Lanyi, George A.
Crisis and continuity in world politics : reading in international relations
Random House , 1966
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