Gaya APA
Leo, Sutanto. (2016).
English for professional tour guiding services .
Jakarta:
PT. Gramedia Pustaka Utama.
Gaya Chicago
Leo, Sutanto.
English for professional tour guiding services.
Jakarta:
PT. Gramedia Pustaka Utama,
2016.
.
Gaya MLA
Leo, Sutanto.
English for professional tour guiding services.
Jakarta:
PT. Gramedia Pustaka Utama,
2016.
.
Gaya Turabian
Leo, Sutanto.
English for professional tour guiding services.
Jakarta:
PT. Gramedia Pustaka Utama,
2016.
.