1. Economics of future energy systems;Ward,2006
2. Renewable energy policy in Croatia: current status and future activities;Bukarica,2006
3. Clean energy;Dell,2004
4. Assessing the potential of renewable energy sources in Turkey;Evrendilek;Renewable Energy,2003
5. World Energy Council (WEC). Turkish National Committee: Ankara; 2006. www.dektmk.org.tr.