共 4 条
[1]
http://news.qqkqw.com/MineBase/View34422.html .
[2]
Clusters and the New Economics of competition. Porter.M.E. Harvard Business Review . 1998
[3]
http://www.vtichina.com/html/l4/200902/9157.html .
[4]
The Nature of the Firm. Ronald H Coase. Economica . 1937