Buttle, F. (2007). Customer relationship management (manajemen hubungan pelanggan): :concepts and tools. Malang:Bayumedia Publishing.
Chicago Style CitationButtle, Francis. Customer Relationship Management (manajemen Hubungan Pelanggan): :concepts and Tools. Malang:Bayumedia Publishing, 2007.
MLA CitationButtle, Francis. Customer Relationship Management (manajemen Hubungan Pelanggan): :concepts and Tools. Malang:Bayumedia Publishing, 2007.
Warning: These citations may not always be 100% accurate.