research about the energy efficiency from source that i will include later only

Topic: research about the energy efficiency from source that i will include later only Order Description the resources you can use (only) : 1)Earth Quest 2)building an Emerald city. A guide to creating green building policies and programs. 3)energy efficiency improvement for existing homes. 4)The very hungry city:urban energy efficiency and the economic fate of cities. 5)energy efficiency standards and green building certification systems used by the department of defense for military.