Gaya APA
Gaffar, V. (2007).
CRM DAN MPR HOTEL (Customer Relationship Management and Marketing Public Relations) .
Bandung:
Alfabeta.
Gaya MLA
Gaffar, Vanessa.
"CRM DAN MPR HOTEL (Customer Relationship Management and Marketing Public Relations)".
Bandung:
Alfabeta,
2007.
Text.