Gaya APA

Supoyo, E. (2015). The Effectiveness Of Critical Incident To Teach Speaking At The Tenth Grade Students Of SMA N 2 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 N 2 Kec. Buay Bahuga Kab. Way Kanan". Cet.1 Sukaraja: STKIP Nurul Huda, 2015. Text.