1. Fundamentals of HVAC/R;Stanfield,2010
2. US House Hold Electricity Report,2005
3. S. Building & Construction Authority, Green Building Design Guide.
4. 2008 ASHRAE Handbook Heating, Ventilating, and Air-conditioning Systems and Equipment;American Society of Heating Refrigerating and Air-Conditioning Engineers. and Knovel (Firm),2008
5. Industrial Refrigeration Handbook;Stoecker,1998