91 DAFTAR PUSTAKA Aaker, A., Kumar V. and Day G.S., 2001. Marketing Research …
Aaker, A., Kumar V. and Day G.S., 2001. Marketing Research, Seventh edition,. New York: John Wiley & Sons, Inc. Alma, Buchari. 2012.
Aaker, A., Kumar V. and Day G.S., 2001. Marketing Research, Seventh edition,. New York: John Wiley & Sons, Inc. Alma, Buchari. 2012.