Unger, Roberto Mangabeira
Knowledge and politics
The Free Press, 1975
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Political scince
edited by Heinz Eulau and James G. March
Prentice-Hall, 1969
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Schroder, Peter
Strategi politik
Frriedrich Naumann Stiftung, 2004
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Sabine, George H.
A history of political theory
Harcourt Brace College Publishers, 1973
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Lukas Luwarso
Sains & pencarian kebenaran
Banana, 2021
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