Edward, David V.
Prentice-Hall, 1982
Buku Teks
edited by Robert E. Ward & Dankward A. Rustews
Princeton University Press, 1968
Buku Teks
Lane, Robert E.
The Free Press, 1972
Buku Teks
Burgat, Francois, author
London, 2003
Buku Teks
Lawrence Erlbaum Associates, 2004
Buku Teks