A Teacher’s Worth Around the World [Infographic] yucin October 24, 2011 Business, City, Culture, Economy, Education, History, Industry, Life, news, Science, social, Work, WorldSource   http://www.master-degree-online.com/
Net Worth of American Presidents vs. National Debt yucin March 3, 2011 PoliticsSource : http://www.creditsesame.com/
