Gaya APA
Barnes, J, G. (2001).
SECRETS OF CUSTOMER RELATIONSHIP MANAGEMENT : Rahasia Manajemen Hubungan Pelanggan .
Yogyakarta:
ANDI OFFSET.
Gaya MLA
Barnes, James, G..
"SECRETS OF CUSTOMER RELATIONSHIP MANAGEMENT : Rahasia Manajemen Hubungan Pelanggan".
Yogyakarta:
ANDI OFFSET,
2001.
Text.