Gaya APA
ZUMAKHSIN, ., Mufarichah, Y. (2006).
PROGRESS A CONTEXTUAL APPROACH TO LEARNING ENGLISH GRADE X .
Jakarta:
GANECA.
Gaya MLA
ZUMAKHSIN, ., Mufarichah, Yulia.
"PROGRESS A CONTEXTUAL APPROACH TO LEARNING ENGLISH GRADE X".
Jakarta:
GANECA,
2006.
Textbook.