Gaya APA

Lougheed, L. (2005). Longman preparation series for TOEIC test : Introductory course with answer key (ke-1). New York: Longman.

Gaya MLA

Lougheed, Lin. "Longman preparation series for TOEIC test : Introductory course with answer key". ke-1 New York: Longman, 2005. Text.