Sargent, Lyman Tower
Contemporary political ideologies : a comparative analysis
Thomson Wadsworth , 2006
 Buku Teks
Deutsch, Karl Wolfgang, 1912-1992
Politics and government
Houghton Mifflin, 1970
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Schlesinger, Arthur Meier
The politics of hope
Houghton Mifflin, 1962
 Buku Teks
Soltau, Roger H.
An Introduction to politics
Longmans, Green , 1951
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Soltau, Roger H.
An Introduction to politics
Longmans, Green , 1960
 Buku Teks