The essenctial Lippmann; a political philosophy for liberal democracy /edited by Clinton rossiter & James Lare
Random House, 1963
 Buku Teks
Siregar, Fritz Edward
The political context of judicial review in indonesia
Faculty of Law University of Indonesia, 2015
 Artikel Jurnal
Political parties and democracy in central America
edited by Louis W. Goodman, William M. LeoGrande, Johanna Mendelson Forman
Westview Press, 1992
 Buku Teks
Braybrooke, David
Three tests for democracy : personal right, human welfare, collective preference
Random House , 1968
 Buku Teks
Vancil, David L.
Rhetoric and argumentation
Allyn and Bacon, 1993
 Buku Teks