Veech, Annette M., author
Prentice-Hall, 2002
Buku Teks
Stokes, Charles J., author
Random House, 1969
Buku Teks
Beck, Charles E., author
Prentice-Hall, 1999
Buku Teks
Shank, John
Prentice-Hall, 1981
Buku Teks
Roebuck, Deborah Britt, author
Business Expert Press, 2012
Buku Teks