Gaya APA
Marketing Research. (1984).
Amerika:
Prentice-Hall.
Gaya Chicago
Marketing Research.
.
Amerika:
Prentice-Hall,
1984.
.
Gaya MLA
Marketing Research.
.
Amerika:
Prentice-Hall,
1984.
.
Gaya Turabian
Marketing Research.
Amerika:
Prentice-Hall,
1984.
.