Gaya APA

Sholikhah, I, M. et al (2007,2013). Principles Of Macroeconomics (4,5th Edition). USA : Thomson Higher Education.

Gaya MLA

Sholikhah, Ika, Maratus. et al. "Principles Of Macroeconomics". 4,5th Edition USA : Thomson Higher Education, 2007,2013. Text.