Gaya APA
Leo, Sutanto. (2016).
English for profesional tour guiding services (Cet. 1).
Jakarta:
Gramedia.
Gaya Chicago
Leo, Sutanto.
English for profesional tour guiding services.
Cet. 1
Jakarta:
Gramedia,
2016.
Text.
Gaya MLA
Leo, Sutanto.
English for profesional tour guiding services.
Cet. 1
Jakarta:
Gramedia,
2016.
Text.
Gaya Turabian
Leo, Sutanto.
English for profesional tour guiding services.
Cet. 1
Jakarta:
Gramedia,
2016.
Print.