Gaya APA

Mertayasa, I, G, A. (2012). Food and beverage service operational : job preperation (cet. 1). Yogyakarta: Andi.

Gaya MLA

Mertayasa, I, Gede, Agus. "Food and beverage service operational : job preperation". cet. 1 Yogyakarta: Andi, 2012. Text.