Gaya APA

Qoyyimah, U., Fanani, A. (2008). English for professional (Cet. 1). Yogyakarta: Golden Books.

Gaya MLA

Qoyyimah, Uswatun., Fanani, Achmad. "English for professional". Cet. 1 Yogyakarta: Golden Books, 2008. Text.