Gaya APA
Leo, Sutanto. (2016).
English For Professional Tour Guiding Services / Sutanto Leo .
Jakarta ::
PT Gramedia Pustaka Utama,.
Gaya Chicago
Leo, Sutanto.
English For Professional Tour Guiding Services / Sutanto Leo.
Jakarta ::
PT Gramedia Pustaka Utama,,
2016.
Text.
Gaya MLA
Leo, Sutanto.
English For Professional Tour Guiding Services / Sutanto Leo.
Jakarta ::
PT Gramedia Pustaka Utama,,
2016.
Text.
Gaya Turabian
Leo, Sutanto.
English For Professional Tour Guiding Services / Sutanto Leo.
Jakarta ::
PT Gramedia Pustaka Utama,,
2016.
Print.