Gaya APA
Leo, S.
(2000).
English For Professional Waiters
(
Cet.1)
.
Jakarta:
Gramedia Pustaka Utama.
Gaya MLA
Leo, Sutanto.
"English For Professional Waiters".
Cet.1
Jakarta:
Gramedia Pustaka Utama,
2000.
Buku Tercetak.