Salehi, F. , Sharp, L. , Abdoli, M. , D.E.Cotton, D. , K.Rezapour, K. (2010), 'The Necessity of Biomass Application for Developing Combined Heat and Power (CHP)with Biogas Fuel: Case Study', World Academy of Science, Engineering and Technology, Open Science Index 42, International Journal of Environmental and Ecological Engineering, 4(6), 188 - 193.