Gaya APA
Mertayasa, I, G, A.
(2012).
Food and Beverage Service Operational
(
1)
.
Yogyakarta:
Andi Offset.
Gaya MLA
Mertayasa, I, Gede, Agus.
"Food and Beverage Service Operational".
1
Yogyakarta:
Andi Offset,
2012.
Buku.