Gaya APA
HARIYANTO, F, T. (2006).
Sistem Operasional Food and Beverage Product di Saphir Hotel Yogyakarta .
Surakarta:
STP Sahid Surakarta.
Gaya MLA
HARIYANTO, Febiyan, Tri.
"Sistem Operasional Food and Beverage Product di Saphir Hotel Yogyakarta".
Surakarta:
STP Sahid Surakarta,
2006.
Text.