1. Fridley D, et al. Technical and economic analysis of energy efficiency of Chinese room-air conditioners, LBNL-45550; 2001.
2. USEPA, The Sino-US CFC-free super-efficient refrigerator project progress report: prototype design & testing, EPA 430-R-97-032; 1997.
3. Evaluation of technology and countermeasures for greenhouse-gas mitigation in China;Hu,2001
4. State Statistical Bureau. China price, income & expenditure of residents. Beijing: Chinese Statistics Press; 1987–2004 [in Chinese].
5. 2004 China statistical yearbook;State Statistical Bureau,2005