Smith, Daniel
How to think like bill gates.
Michael O'Mara Books Limited, 2015
 Buku Teks
Bearden, William O.
Marketing ; principles & perspectives
McGraw-Hill, 2001
 Buku Teks
Bearden, William O.
Marketing ; principles & perspectives
McGraw-Hill, Irwin, 2007
 Buku Teks
Myers, John G.
Marketing research and knowledge development : an assessment for marketing management
Prentice-Hall, 1980
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Lehmann, Donald R.
Analysis for marketing planning
McGraw-Hill, 2005
 Buku Teks