9LEUNG C K.Personal contacts,subcontracting linkages and development in the Hongkong-Zhujiang deltal region[J].Ann Assoc Amer Geographers,1993,83(2):619-624.
10FLORIDA R,KENNY M.Restruction in place,Japaness investment,production organization,and the geography of steel[J].Econ Geogr,1992,68(2):125-140.
