Gaya APA

Sujatno, A, B., Suyantoro, S. (2011). HOSPITALITY : Secret Skills, Attitudes, and Performances for Restaurant Manager . yogyakarta: Andi.

Gaya MLA

Sujatno, A., Bambang., Suyantoro, Sigit. "HOSPITALITY : Secret Skills, Attitudes, and Performances for Restaurant Manager". yogyakarta: Andi, 2011. Text.