Gaya APA
Soeprapto, ., Darwis, M. (2005).
Linked to the world English for SMA/MA Grade XI: Science and Social Program .
JAKARTA:
Yudhistira.
Gaya MLA
Soeprapto, ., Darwis, Mariana.
"Linked to the world English for SMA/MA Grade XI: Science and Social Program".
JAKARTA:
Yudhistira,
2005.
Text.