Wu dong The Class 0301,Department of marketing,College of economics and trade,Agricultural University of Hebei, China Tel:13777777777 E-mail:wdjlw@wdjlw.cn , PostCode:071000
Zhidong Liu 23 South Xianlie South China Computer Company Guangzhou 510060
Wu dong The Class 0301,Department of marketing,College of economics and trade,Agricultural University of Hebei, China Tel:13777777777 E-mail:wdjlw@wdjlw.cn , PostCode:071000