Gaya APA
Buttle, F.
(2007).
Customer Relationship Management (Manajemen Hubungan Pelanggan)
(
1)
.
Jakarta:
Bayumedia.
Gaya MLA
Buttle, Francis.
"Customer Relationship Management (Manajemen Hubungan Pelanggan)".
1
Jakarta:
Bayumedia,
2007.
Teks.