Dye, Thomas R.
The irony of democracy : an uncommon introduction to American politics
Harcourt Brace College, 2000
 Buku Teks
Understanding democratic politics: an introduction
Sage Publications, 2012
 eBooks
Padover, Saul K. (Saul Kussiel)
The meaning of democracy : an appraisal of the american experience
Frederick A. Praeger, 1963
 Buku Teks
Mayo, Henry B.
An introduction to democratic theory
Oxford University Press , 1960
 Buku Teks
Cassinelli, C.W.
The politics of freedom: an analysis of the modern democratic state / by C.W. Cassinelli
University of Washington Press , 1961
 Buku Teks