1Zhang-Liang.The economical evaluation of geological disasters.Beijing:Chinese economy in geologic mineral,
2Sun Zhen-Kai.The Indicators study classified by natural disasters situation,XIAN:THE disasters science.1994.(2).
3Ma Zhong-Jin.The Evaluation of natural disasters,the Degree of disasters.Chinese Study of Diminishing natural disasters,Chinese Scientific Technologic Press,1990.
4Li Yong-San.The Research of the Society-Economy Efficiency in diminishing disasters,The Disaster Science,Vol6,Series 3.
5Wu Hen-An.The Practical Economy of Water Conservancy,Hydro-Electric Power Press,1988.
