Gaya APA
ARIFIN, A.
(2003).
FAQ (Frequently Asked Questions) About Viral Marketing
(
1)
.
Yogyakarta:
Andi Publisher.
Gaya MLA
ARIFIN, ALI.
"FAQ (Frequently Asked Questions) About Viral Marketing".
1
Yogyakarta:
Andi Publisher,
2003.
Text.