1. Economic and environmental impacts of the liquid biofuels;Demirbas;Energy Edu Sci Technol,2008
2. Biofuels for internal combustion engines;Demirbas;Energy Edu Sci Technol Part A,2009
3. Recent progress in biorenewable feedstocks;Demirbas;Energy Edu Sci Technol,2008
4. Energy concept and energy education;Demirbas;Energy Educ Sci Technol Part B,2009
5. Bio-fuels from agricultural residues;Demirbas;Energy Sources Part A,2008