Gaya APA
Kotler, P. (2010).
Marketing 3.0: From Products to Customers to The Human Spirit .
New Jersey:
John Wiley & Sons, Inc..
Gaya MLA
Kotler, Philip.
"Marketing 3.0: From Products to Customers to The Human Spirit".
New Jersey:
John Wiley & Sons, Inc.,
2010.
BUKU.