郑建华.国民经济关键部门的测定———以重庆市为例[J].重庆工商大学学报(自然科学版),2011,28(4):355-359
Zheng Jian-hua. Determiantion of Key Sectors of National Economy --Taking Chongqing as an Example[J]. Journal of Chongqing Technology and Business University(Natural Science Edition),2011,28(4):355-359