Gaya APA

Sudarwati, M., Grace, E. (2007). Look ahead 3: an english course for senior high school students year xii (cet. i). Jakarta: Penerbit erlangga.

Gaya MLA

Sudarwati, M.., Grace, Eudia. "Look ahead 3: an english course for senior high school students year xii". cet. i Jakarta: Penerbit erlangga, 2007. Text.