Gaya APA

BUTTLE, F. et al (2007). CUSTOMER RELATIONSHIP MANAGEMENT (MANAJEMEN HUBUNGAN PELANGGAN) : CONCEPTS AND TOOLS . : BAYUMEDIA.

Gaya MLA

BUTTLE, FARNCIS. et al. "CUSTOMER RELATIONSHIP MANAGEMENT (MANAJEMEN HUBUNGAN PELANGGAN) : CONCEPTS AND TOOLS". : BAYUMEDIA, 2007. Prodi S1 Adm. Bisnis.