Gaya APA
LEO, Sutanto. (2003).
English for Professional hotel communication .
Jakarta:
Gramedia Pustaka Utama.
Gaya Chicago
LEO, Sutanto.
English for Professional hotel communication.
Jakarta:
Gramedia Pustaka Utama,
2003.
Monograf.
Gaya MLA
LEO, Sutanto.
English for Professional hotel communication.
Jakarta:
Gramedia Pustaka Utama,
2003.
Monograf.
Gaya Turabian
LEO, Sutanto.
English for Professional hotel communication.
Jakarta:
Gramedia Pustaka Utama,
2003.
Monograf.