Gaya APA
OKTORINA, S. (2003).
Food and Beverage Service di Ambarukmo Palace Hotel Yogyakarta .
Surakarta:
STP Sahid Surakarta.
Gaya MLA
OKTORINA, Sylvia.
"Food and Beverage Service di Ambarukmo Palace Hotel Yogyakarta".
Surakarta:
STP Sahid Surakarta,
2003.
Text.