Gaya APA

Zumakhsin, ., Mufarichah, Y. (2007). Progress A Contextual Approach To Learning English An English Textbook For Senior High School Grade XI . Jakarta: ganeca exact.

Gaya MLA

Zumakhsin, ., Mufarichah, Yulia. "Progress A Contextual Approach To Learning English An English Textbook For Senior High School Grade XI". Jakarta: ganeca exact, 2007. Text.