Gaya APA

Mulyadi, E., Mardiyatmo, . (2009). Economics [Jilid 1]: for Junior High School Year VII (Cet. 1.--). Jakarta: Yudhistira.

Gaya MLA

Mulyadi, Endang., Mardiyatmo, . "Economics [Jilid 1]: for Junior High School Year VII". Cet. 1.-- Jakarta: Yudhistira, 2009. Text.