Gaya APA

Tanjung, H., Siregar, H. (2012). Macroeconomics an Evolutionary Approach (Cetakan 1). Bogor: IPB Press.

Gaya MLA

Tanjung, Hendri., Siregar, Hermanto. "Macroeconomics an Evolutionary Approach". Cetakan 1 Bogor: IPB Press, 2012. Text.