Gaya APA

Sugeng, B., Aji, P. (2001). Let's Make Friends with English [6] : Book Six for Elementary School (Cet. 1.--). Jakarta: Esis.

Gaya MLA

Sugeng, Bambang., Aji, Paulan. "Let's Make Friends with English [6] : Book Six for Elementary School". Cet. 1.-- Jakarta: Esis, 2001. Text.