Gaya APA
TRIYONO, S. (2006).
Operasional Kerja Food and Beverage Service Departemen di Hotel Saphir Yogyakarta .
Surakarta:
STP Sahid Surakarta.
Gaya MLA
TRIYONO, Sugeng.
"Operasional Kerja Food and Beverage Service Departemen di Hotel Saphir Yogyakarta".
Surakarta:
STP Sahid Surakarta,
2006.
Text.