Hill, Charles W. L., author
Houghton Miffiln, 2001
Buku Teks
Aaker, David A., author
John Wiley & Sons, 1984
Buku Teks
Cravens, David W., author
Erlangga, 1996
Buku Teks
Kotler, Philip, author
Prentice-Hall, 1995
Buku Teks
Kerin, Roger A., author
Prentice Hall international, 2001
Buku Teks