search query: @author Yan, Qing / total: 2
references: 1-2 / 2
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1.
Journal of Beijing Institute of Business (c)
2000 : 1, p.41-44
2000 Yan, Qing
2.
International Economics and Trade Research (c)
1999 : 3, p.54-57
1999 Yan, Qing
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