1. Infoplease. Total population of the world by decade, 1950–2050 (historical and projected); 2010. [Online] Available at: http://www.infoplease.com/ipa/A0762181.html [accessed: 18th August 2010].
2. Importance of biomass energy as alternative to other sources in Turkey;Gokcol;Energy Policy,2009
3. U.S. Energy Information administration. International energy outlook 10; 2010. [Online] Available at: http://www.eia.doe.gov/oiaf/ieo/pdf/0484%282010%29.pdf [accessed: 12th August 2010].
4. Available at: http://www.unido.org/fileadmin/media/documents/pdf/Energy_Environment/ind_energy_efficiencyEbookv2.pdf [accessed: 14th August 2010].
5. Global overview of industrial energy intensity;Silveria;Energy Policy,2008