Keller, kotler
Marketing Management
Pearson Education, Inc, 2006
 Buku Teks
Brown, F.E.
Marketing research : a structure for decision making
Addison-Wesley, 1980
 Buku Teks
Cox, Eli P.
Marketing research : information for decision making
Harper & Row, 1979
 Buku Teks
Howard, John A.
Marketing management analysis and decision
Richard D. Irwin, 1957
 Buku Teks
Keegan, Warren J.
Multinational marketing management
Prentice Hall of India, 1982
 Buku Teks