Gaya APA

Fitrini, E., sumiratingratri, R. (2017). i speak English (cet-1.th2020). Jakarta.: pt.cahaya pustaka raga.

Gaya MLA

Fitrini, Erna., sumiratingratri, Ratih. "i speak English". cet-1.th2020 Jakarta.: pt.cahaya pustaka raga, 2017. Text.