Gaya APA

Francis, B. (2007). Customer Relationship Management : (Manajemen Hubungan Pelanggan) Concepts and tools (Ed I). Oxford: Bayumedia Pulishing.

Gaya MLA

Francis, Buttle. "Customer Relationship Management : (Manajemen Hubungan Pelanggan) Concepts and tools". Ed I Oxford: Bayumedia Pulishing, 2007. Text.