History and theory
Middletown : Wesleyan University Press
 Majalah, Jurnal, Buletin
Sabine, George H.
A history of political theory
Harcourt Brace College Publishers, 1973
 Buku Teks SO
Barnard, Alan
History and theory in anthropology
Cambridge University Press, 2000
 Buku Teks SO
Sabine, George H.
History of political theory
George G. Harrap, 1952
 Buku Teks SO
Sabine, George H.
History political theory
Dryden, 1973
 Buku Teks