Albrecht, Gary L.
Connecticut JAI Press, 1994
Buku Teks
John Scott, editor
RajaGrafindo Persada, 2011
Buku Teks
Sullivan, Thomas J., 1944-, author
John Wiley & Sons, 1984
Buku Teks
Thompson, Kenneth, author
Routledge, 1996
Buku Teks
Abrahamson, Mark, author
Prentice-Hall, 1981
Buku Teks