Derry, Gregory N.
Princeton University Press , 1999
Buku Teks SO
Bohannan, Paul
Free Press, 1995
Buku Teks
edited by John M. Dalton
New York Institute of Finance, 1998
Buku Teks
White, Ron
Ziff-Davis, 1993
Buku Teks
Selvin, Steve
Pearson - Prentice Hall, 2004
Buku Teks