Gaya APA

Betsis, A., Mamas, L. (2014). Succeed in the Toeic Test [Volume 2] (Cet. 1.--). Jakarta: Erlangga.

Gaya MLA

Betsis, Andrew., Mamas, Lawrence. "Succeed in the Toeic Test [Volume 2]". Cet. 1.-- Jakarta: Erlangga, 2014. Text.