Gaya APA

Sri, I, R., Suyanto, K, K. (2006). Lets communicate in English 2: a speaking course for intermediate level . Jakarta: Jakarta: Elek Media Komputindo, 2006.

Gaya MLA

Sri, I., Rachmajanti,., Suyanto, Kasihani, K.E. "Lets communicate in English 2: a speaking course for intermediate level". Jakarta: Jakarta: Elek Media Komputindo, 2006, 2006. .