Joad, C.E.M.
Introduction to modern political theory
Clarendon Press, 1959
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Grimes, Alan P.
Modern political ideologies
Oxford University Press , 1959
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Dahl, Robert A., 1915-2014
Modern political analysis
Prentice Hall of India, 1976
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Political development in modern Japan
edited by Robert E. Ward
Princeton University Press, 1968
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Dahl, Robert A., 1915-2014
Modern political analysis
Prentice-Hall, 1978
 Buku Teks SO