Bambang, S., A., Suyantoro, F., S.(2011).Hospitlity: secret skills, attitude, and performances for restaurant manager (Cet. 1).Yogyakarta:.
Gaya MLA
Sujatno, A., Bambang., Suyantoro, Fl., Sigit."Hospitlity: secret skills, attitude, and performances for restaurant manager".Cet. 1Yogyakarta:,2011.Textbook.