Penggayaan APA
ZEITHAML, Valarie A.. (2000).
Services Marketing .
Boston:
McGraw-Hill.
Chicago Style
ZEITHAML, Valarie A..
Services Marketing.
Boston:
McGraw-Hill,
2000.
Buku.
MLA Style
ZEITHAML, Valarie A..
Services Marketing.
Boston:
McGraw-Hill,
2000.
Buku.
Turabian Style
ZEITHAML, Valarie A..
Services Marketing.
Boston:
McGraw-Hill,
2000.
Buku.