Gaya APA
Soeprapto, F., Mariana, D. (2006).
Linked to the world 1:english for senior high school .
YUDHISTIRA:
Willian.
Gaya MLA
Soeprapto, F.A.., Mariana, Darwis.
"Linked to the world 1:english for senior high school".
YUDHISTIRA:
Willian,
2006.
Text.