Gaya APA

Gaffar, V. (2007). CRM dan MPR Hotel(Customer Relationship Manajemen and Marketing Public Relations) (cet. 1). Yogyakarta: Alfabeta.

Gaya MLA

Gaffar, Vanessa. "CRM dan MPR Hotel(Customer Relationship Manajemen and Marketing Public Relations)". cet. 1 Yogyakarta: Alfabeta, 2007. Text.