Gaya APA

Sugiarto, E., Kowa, F. (1997). Operasional Kantor Depan Hotel=Hotel Front Office Operationals (Cet. 1.--). Jakarta: Gramedia Pustaka Utama.

Gaya MLA

Sugiarto, Endar., Kowa, Frans. "Operasional Kantor Depan Hotel=Hotel Front Office Operationals". Cet. 1.-- Jakarta: Gramedia Pustaka Utama, 1997. Text.