Gaya APA

Betsis, A., Mamas, L. (2014). Succeed in the TOEIC test: self-practice, authentic test format, practical usage volume 2 . Jakarta: Erlangga.

Gaya MLA

Betsis, Andrew., Mamas, Lawrence. "Succeed in the TOEIC test: self-practice, authentic test format, practical usage volume 2". Jakarta: Erlangga, 2014. Buku Tercetak.