Gaya APA
Sujatno, A, B. (2011).
Hospitality: secret skill, attitudes, and performance for restaurant manager .
Yogyakarta:
C.V Andi Offset.
Gaya MLA
Sujatno, A., Bambang.
"Hospitality: secret skill, attitudes, and performance for restaurant manager".
Yogyakarta:
C.V Andi Offset,
2011.
Text.