Gaya APA
sujatno, A, B. (2011).
Hospitality : Secret skill, attitudes, and perfomances for restaurant manager, cet.1 .
Yogjakarta:
Andi offset.
Gaya MLA
sujatno, A., Bambang.
"Hospitality : Secret skill, attitudes, and perfomances for restaurant manager, cet.1".
Yogjakarta:
Andi offset,
2011.
Text.