Gaya APA
Vyas, P., Kurniawan, A.
(2008).
Prepositions for Beginners: In
.
Jakarta:
Permata Equator Media.
Gaya MLA
Vyas, Preeta., Kurniawan, Agusthinus.
"Prepositions for Beginners: In".
Jakarta:
Permata Equator Media,
2008.
Text.