Gaya APA
Secrets of Customer Relationship Management (Rahasia Manajemen Hubungan Pelanggan). (2003).
Jakarta,:
ANDI _2.
Gaya MLA
Secrets of Customer Relationship Management (Rahasia Manajemen Hubungan Pelanggan).
ed. 1.
Jakarta,:
ANDI _2,
2003.
Buku Teks.