CIA.2008. World Factbook. U. S. Central Intelligence Agency. Washington, D.C.: U. S. Government Printing Office.
4.
EinhornBruce. 2009. “Countries with the Biggest Gaps Between Rich and Poor.” Business Week (October 16). BusinessWeek.com
5.
KimChang Hwan, and ArthurSakamoto. 2008. “The Rise of Intra-Occupational Wage Inequality in the U.S. 1983-2002.” American Sociological Review, 73, 129–157.
6.
LaibmanDavid. 2009. “The Western Left, the Soviet Union, and Marxism.” Science & Society, 73:4 (October), 540–553.
7.
PikettyThomas, and EmmanuelSaez. 2003. “Income Inequality in the United States: 1913-1998.” Quarterly Journal of Economics, 118:1, 1–39.