Gaya APA

Barnadi, D. et al (2007). Prinsip - prinsip ekonomi = principles of economics (8 th edition, Jil. 1). Jakarta: Erlangga.

Gaya MLA

Barnadi, Devri. et al. "Prinsip - prinsip ekonomi = principles of economics". 8 th edition, Jil. 1 Jakarta: Erlangga, 2007. Text.