Mannheim, Hermann, author
Routledge, 1955
Buku Teks
Sykes, Gresham M., author
Random Hoese, 1963
Buku Teks
Felson, Marcus
Pine force Press, 1998
Buku Teks
Nettler, Gwynn
McGraw-Hill, 1979
Buku Teks
David Levinson, editor
Sage Publications , 2002
Buku Referensi