Schulz, Ernest B
[publisher not identified], 1956
Buku Teks
Arblaster, Anthony
Open University Press, 1987
Buku Teks
editor, Diane Ravitch, Abigail Thernstrom; penerjemah, Hermoyo
Yayasan Obor Indonesia, 2006
Buku Teks
Eisenstadt, Shmuel Noah
The Woodrow Lilson Center Press, 1999
Buku Teks
Boix, Carles
Cambridge University Press, 2003
Buku Teks