Gaya APA
HERMAWAN, S. (2005).
Operasional Food and Beverage Product di Saphir Hotel Yogyakarta .
Surakarta:
STP Sahid Surakarta.
Gaya MLA
HERMAWAN, Sigit.
"Operasional Food and Beverage Product di Saphir Hotel Yogyakarta".
Surakarta:
STP Sahid Surakarta,
2005.
Text.