Gaya APA

Zumakhsin, ., Mufarichah, Y. (2007). Progress A Contextual Approach to Learning English Grade X (2007). Jakarta: Ganeca Exact.

Gaya MLA

Zumakhsin, ., Mufarichah, Yulia. "Progress A Contextual Approach to Learning English Grade X". 2007 Jakarta: Ganeca Exact, 2007. Text.