Gaya APA

Pulungan, S, E, L., Fitria, I. (2010). Let's Make Friends with English [1] : For Elementary School Grade One (Cet. 4.--). Jakarta: Esis.

Gaya MLA

Pulungan, Siti, Eryda, Lubis., Fitria, Indah. "Let's Make Friends with English [1] : For Elementary School Grade One". Cet. 4.-- Jakarta: Esis, 2010. Text.