APA (7th ed.) Citation

Betsis, A., & Mamas, L. (2014). Succeed in the toeic test volume 1. Erlangga.

Chicago Style (17th ed.) Citation

Betsis, Andrew, and Lawrence Mamas. Succeed in the Toeic Test Volume 1. Erlangga, 2014.

MLA (8th ed.) Citation

Betsis, Andrew, and Lawrence Mamas. Succeed in the Toeic Test Volume 1. Erlangga, 2014.

Warning: These citations may not always be 100% accurate.