Gaya APA

Betsis, A., Mamas, L. (2014). Succeed In The TOEIC Test Volume 2 (Ed. 1 Cet. 1). Jakarta: Erlangga.

Gaya MLA

Betsis, Andrew., Mamas, Lawrence. "Succeed In The TOEIC Test Volume 2". Ed. 1 Cet. 1 Jakarta: Erlangga, 2014. Text.