Strong, C.F.
Modern political constitutions: an introduction to the comparative study of their history and existing forms
Sidgwick & Jackson Limited, 1960
 Buku Teks SO
Hague, Rod.
Political science : a comparative introductionHarrop.
Palgrave Macmillan , 2013
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Roucek, Joseph S.
Introduction to political science
Thomas Y. Crowell, 1950
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Introduction to political science
by Carlton Clymer Rodee ... [and others]
McGraw-Hill Kogakusha, 1976
 Buku Teks SO
Introduction to political science
by Carlton Clymer Rodee ... [and others]
McGraw-Hill, 1983
 Buku Teks SO