Gaya APA

Doff, Adrian. (2005). Listening 1 Student's book . Yogyakarta: .

Gaya Chicago

Doff, Adrian. Listening 1 Student's book. Yogyakarta: , 2005. Text.

Gaya MLA

Doff, Adrian. Listening 1 Student's book. Yogyakarta: , 2005. Text.

Gaya Turabian

Doff, Adrian. Listening 1 Student's book. Yogyakarta: , 2005. Print.