Gaya APA

Nellis, J, G., Parker, D. (2000). The Essence of The Economy-Ekonomi (Ed. 1, Cet. 1). Yogyakarta: Andi and Pearson Education Asia Pte. Ltd..

Gaya MLA

Nellis, Joseph, G.., Parker, David. "The Essence of The Economy-Ekonomi". Ed. 1, Cet. 1 Yogyakarta: Andi and Pearson Education Asia Pte. Ltd., 2000. Text.