Gaya APA
Aaker, David A, Kumar, Vikram. (1999).
Essentials of marketing research .
New York:
John Wiley.
Gaya Chicago
Aaker, David A, Kumar, Vikram.
Essentials of marketing research.
New York:
John Wiley,
1999.
Buku.
Gaya MLA
Aaker, David A, Kumar, Vikram.
Essentials of marketing research.
New York:
John Wiley,
1999.
Buku.
Gaya Turabian
Aaker, David A, Kumar, Vikram.
Essentials of marketing research.
New York:
John Wiley,
1999.
Buku.