Bluhm, William T.
Theories of the political system / William T. Bluhm
Prentice Hall of India, 1981
 Buku Teks SO
Ebenstein, William
Modern political thought : the great issues
Holt, Rinehart and Winston, 1962
 Buku Teks SO
Ebenstein, William
Great political thinkers: Plato to the present
Rinehart, 1963
 Buku Teks SO
Ebenstein, William
Great political thinkers plato to the present
Rinehart, 1960
 Buku Teks SO
Ebenstein, William
Great political thinkers : Plato to the present
Thomson Learning, 2000
 Buku Teks