Gaya APA

Betsis, A., Mamas, L. (2014). SUCCEED IN THE TOEIC TEST VOLUME 1 (ed.1). Jakarta: Erlangga.

Gaya MLA

Betsis, Andrew., Mamas, Lawrence. "SUCCEED IN THE TOEIC TEST VOLUME 1". ed.1 Jakarta: Erlangga, 2014. Text.