Gaya APA

CHA, D, B, S. (2011). Hospitality: Secret Skills Attitudes and Performances for Restaurant Manager Ed.1 (1). Yogyakarta: Andi Offset.

Gaya MLA

CHA, Drs.A., Bambang, Sujatno,. "Hospitality: Secret Skills Attitudes and Performances for Restaurant Manager Ed.1". 1 Yogyakarta: Andi Offset, 2011. Text.