Gaya APA

Sari, A, W. (2014). The Effectiveness of Subtitution Drul Tech.. . UNWIR: FKIP B. Inggris.

Gaya MLA

Sari, Ayu, Widya. "The Effectiveness of Subtitution Drul Tech..". UNWIR: FKIP B. Inggris, 2014. Text.