Slapper, Gary, author
Longman , 1999
Buku Teks
Simpson, Sally S.
Cambridge University Press, 2002
Buku Teks
Lawrence M. Salinger, editor
Sage Reference, 2013
Buku Referensi
Clinard, Marshall B. (Marshall Barron), author
Sage Publications, 1985
Buku Teks
Brickey, Kathleen F., author
Litt;e, Brown, 1995
Buku Teks