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Your query returned 3 studies. Series results are grouped under the most relevant study. Ungroup series results to view all 3 results.

1.
Gansu Poverty and Education Project, Wave 1, 2000 (ICPSR 28661)
Hannum, Emily; Zhang, Yanhong
2.
Mathematics Teaching in the 21st Century (ICPSR 34430)
Schmidt, William
3.

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