Gaya APA

s, B, J, &, I, A. (2012). Buku Sakti Listening Comprehension . jogjkarta: Penerbt Diva Press.

Gaya MLA

s, Bernando, J,s., &, Irham, Ali. "Buku Sakti Listening Comprehension". jogjkarta: Penerbt Diva Press, 2012. .