Gaya APA
buttle, F. et al ().
Customer Relationship Management (Manajemen Hubungan Pelanggan) : Concepts And Tools .
Amsterdam:
Elsevier.
Gaya MLA
buttle, Francis. et al.
"Customer Relationship Management (Manajemen Hubungan Pelanggan) : Concepts And Tools".
Amsterdam:
Elsevier,
.
Text.