Gaya APA

Barnes, J, G. (2003). Secrets of customer relationship management: Rahasia manajemen hubungan pelanggan (Ed.1). Yogyakarta: Andi.

Gaya MLA

Barnes, James, G.. "Secrets of customer relationship management: Rahasia manajemen hubungan pelanggan". Ed.1 Yogyakarta: Andi, 2003. Manajemen Administrasi D3.