Gaya APA

(ed.), S, W. et al (2007). Customer relationship management (Manajemen Hubungan Pelanggan) : concept and tools (1st ed). Malang: Bayu Media.

Gaya MLA

(ed.), Setiyono, Wahyudi. et al. "Customer relationship management (Manajemen Hubungan Pelanggan) : concept and tools". 1st ed Malang: Bayu Media, 2007. BUKU.