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