Hill, John W., author
Prentice-Hall, 1993
Buku Teks
Timberlake, Karen C., author
Pearson - Prentice Hall, 2009
Buku Teks
Timberlake, Karen C., author
Pearson Benjamin Cummings, 2007
Buku Teks
Solomon, Sally
McGraw-Hill, 1987
Buku Teks
Garoutte, Michael P., author
John Wiley & Sons, Inc, 2007
Buku Teks