search query: @author Liu, Hai / total: 1
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| title | year | author | ||
| 1. |
Group Economics Research (c)
1994 : 1, p.34-36 |
1994 | Liu, Hai |
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| title | year | author | ||
| 1. |
Group Economics Research (c)
1994 : 1, p.34-36 |
1994 | Liu, Hai |