Gaya APA

MAHFUD, I. (2012). The Effectiveness of case study to teach students speaking ability viewed from students self-efficac . : Pascasarjana UNS.

Gaya MLA

MAHFUD, Ikhwan. "The Effectiveness of case study to teach students speaking ability viewed from students self-efficac". : Pascasarjana UNS, 2012. Text.