Gaya APA
Suwito, R.
(2010).
Geography Bilingual 1 kelas 7
(
KTSP 2006)
.
Jakarta:
Yudhistira.
Gaya MLA
Suwito, Ragil.
"Geography Bilingual 1 kelas 7".
KTSP 2006
Jakarta:
Yudhistira,
2010.
Text.