1. Anhydrous ethanol: A renewable source of energy;Santosh Kumar;India . Renewable and Sustainable Energy Reviews,2010
2. Cyclopaedia of Political Science, Political Economy, and the Political History of the United States. LAISSEZ FAIRE-LAISSEZ PASSER;John B Lalor;Library of Economics and Liberty
3. Figure 2.21. Top ten beneficiary countries in education, 2013-15