Gaya APA
Suwarni, ., Ida, M.
(2008).
Let's Study Prepositions
.
Yogyakarta:
Citra Aji Parama.
Gaya MLA
Suwarni, ., Ida, Maharani..
"Let's Study Prepositions".
Yogyakarta:
Citra Aji Parama,
2008.
Text.