Ebenstein, William
Great political thinkers : Plato to the present
Thomson Learning, 2000
 Buku Teks
Political thinkers: from socrates to the present
David Boucher, Paul Kelly, editor
Oxford Univesity Press, 2009
 Buku Teks SO
The social & political ideas of some great thinkers of the renaissance and the reformation : a series of lectures delivered at King's College University of London
edited by F.J.C. Hearnshaw
Barnes & Noble, 1949
 Buku Teks
Ebenstein, William
Modern political thought : the great issues
Holt, Rinehart and Winston, 1962
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Barker, Sir Ernest
Greek political theory: plato and his predecessors
University Paperbacks, 1960
 Buku Teks