search query: @author Yan, Zongxin / total: 1
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| title | year | author | ||
| 1. |
Modern Economic Science (c)
1999 : 3, p.81-84 |
1999 | Yan, Zongxin |
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| title | year | author | ||
| 1. |
Modern Economic Science (c)
1999 : 3, p.81-84 |
1999 | Yan, Zongxin |