Gaya APA
Sugiarto, E. (2004).
Hotel front office administration (administrasi kantor depan hotel) .
Jakarta:
Gramedia Pustaka Utama.
Gaya MLA
Sugiarto, Endar.
"Hotel front office administration (administrasi kantor depan hotel)".
Jakarta:
Gramedia Pustaka Utama,
2004.
Text.