Gaya APA

Doff, A., Becket, C. (2008). Listening Student's Book 1 (Cet.6). Yogyakarta: Kanisius.

Gaya MLA

Doff, Adrian., Becket, Carolyn. "Listening Student's Book 1". Cet.6 Yogyakarta: Kanisius, 2008. Text.