Gaya APA

Fitrini, E., Sumiratingrati, R. (2019). English is cool (Cet. -). Jakarta: Cahaya Pustaka Raga.

Gaya MLA

Fitrini, Erna., Sumiratingrati, Ratih. "English is cool". Cet. - Jakarta: Cahaya Pustaka Raga, 2019. Text.