References
Wines, Michael. “How Bad is Inflation in Zimbabwe?” The New York Times, May 2, 2006. http://www.nytimes.com/2006/05/02/world/africa/02zimbabwe.html?pagewanted=all&_r=0.
Hanke, Steve H. “R.I.P. Zimbabwe Dollar.” CATO Institute. Accessed December 31, 2013. http://www.cato.org/zimbabwe.
Massachusetts Institute of Technology. 2015. "Billion Prices Project." Accessed March 4, 2015. http://bpp.mit.edu/usa/.