Schulz, Ernest B
Democracy
[publisher not identified], 1956
 Buku Teks
Democracy
Oxford University Press, 1995
 Buku Teks
Catt, Helena
Democracy in practice
Routledge , 1999
 Buku Teks
Mackie, Gerry
Democracy defended
Cambridge University Press, 2003
 Buku Teks
Eisenstadt, Shmuel Noah
Paradoxes of democracy
The Woodrow Lilson Center Press, 1999
 Buku Teks