Gaya APA
BARNES, J, G.
(2003).
Secrets of Customer Relationship Management
(
Cet. 1)
.
Yogyakarta:
Andi Offset.
Gaya MLA
BARNES, James, G..
"Secrets of Customer Relationship Management".
Cet. 1
Yogyakarta:
Andi Offset,
2003.
Text.