Gaya APA

Iftanti, E. (2017). English for Specific Purposes (1). Tulungangung: IAIN Tulungangung Press, Yogyakarta.

Gaya MLA

Iftanti, Erna. "English for Specific Purposes". 1 Tulungangung: IAIN Tulungangung Press, Yogyakarta, 2017. Text.