Gaya APA

Supoyo, E. (2015). The Effectiveness of Critical Incident to Teach Speaking at the Tenth Grade Students of SMA Negeri II Kec. Buay Bahuga Kab. Way Kanan (Cet.1). Sukaraja: STKIP Nurul Huda.

Gaya MLA

Supoyo, Edi. "The Effectiveness of Critical Incident to Teach Speaking at the Tenth Grade Students of SMA Negeri II Kec. Buay Bahuga Kab. Way Kanan". Cet.1 Sukaraja: STKIP Nurul Huda, 2015. Text.