Gaya APA

Zumakhsin, ., Mufarichah,Yulia, . (2007). Progress A Contextual Approach To Learning English An English Textbook for Senior High School Grade X . Jakarta: Ganeca Exact.

Gaya MLA

Zumakhsin, ., Mufarichah,Yulia, . "Progress A Contextual Approach To Learning English An English Textbook for Senior High School Grade X". Jakarta: Ganeca Exact, 2007. Text.