Becker, Carl L. (Carl Lotus), 1873-1945
Modern democracy
Yale University Press, 1959
 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
Demokrasi : klasik dan modern
Yayasan obor Indonesia, 2005
 Buku Teks
Schulz, Ernest B
Democracy
[publisher not identified], 1956
 Buku Teks
Arblaster, Anthony
Democracy
Open University Press, 1987
 Buku Teks