APA Style
Buttle, F. (2007).
Customer Relationship Management [Manajemen Hubungan Pelanggan] (ed. 1).
Jakarta:
Bayumedia.
MLA Style
Buttle, Francis.
"Customer Relationship Management [Manajemen Hubungan Pelanggan]".
ed. 1
Jakarta:
Bayumedia,
2007.
Text.