Gaya APA
Marketing Essentials 7th Edition. (2012).
Australia:
South-Western.
Gaya Chicago
Marketing Essentials 7th Edition.
.
Australia:
South-Western,
2012.
Buku.
Gaya MLA
Marketing Essentials 7th Edition.
.
Australia:
South-Western,
2012.
Buku.
Gaya Turabian
Marketing Essentials 7th Edition.
Australia:
South-Western,
2012.
Buku.