APA Style
Secrets Of Customer Relationship Management: Rahasia Manajemen Hubungan Pelanggan. (2003).
Yogyakarta:
ANDI.
MLA Style
Secrets Of Customer Relationship Management: Rahasia Manajemen Hubungan Pelanggan.
1st Ed..
Yogyakarta:
ANDI,
2003.
Buku.