Gaya APA

CHA, D, A, B, S. (2008). Front Office operations; (Secret Receptionist Skills) For 5 Stars Hotels . : PENERBIT ANDI.

Gaya MLA

CHA, Drs., A., Bambang, Sujatno. "Front Office operations; (Secret Receptionist Skills) For 5 Stars Hotels". : PENERBIT ANDI, 2008. Text.