Gaya APA

Fitrini, E., Sumiratingratri, R. (2009). Speaking english at home and school . Jakarta: PT Cahaya Pustaka Raga.

Gaya MLA

Fitrini, Erna., Sumiratingratri, Ratih. "Speaking english at home and school". Jakarta: PT Cahaya Pustaka Raga, 2009. Text.