PDF(225 KB)
Measurement and Calculation on the Contribution Rate of the Technological Advance of the Primary Industry in Henan Province
Yao Guo DANG;Si Feng LIU;Bing Jun LI;Zhen CHEN;Zhen Jie ZHAI
Systems Engineering - Theory & Practice ›› 2000, Vol. 20 ›› Issue (8) : 95-99.
PDF(225 KB)
PDF(225 KB)
Measurement and Calculation on the Contribution Rate of the Technological Advance of the Primary Industry in Henan Province
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