Gaya APA
Peter, C. (2003).
If You So Brilliant.. How Come You Can't Identify Your Key Customers .
Jakarta:
Elex Media Komputindo.
Gaya MLA
Peter, Cheverton.
"If You So Brilliant.. How Come You Can't Identify Your Key Customers".
Jakarta:
Elex Media Komputindo,
2003.
Text.