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Culture and cognitive development : studies in mathematical understanding / Geoffrey B. Saxe.
- 370.15651 S272
- Saxe, Geoffrey B.
- L. Erlbaum Associates,
- c1991.
- Hillsdale, N.J. :
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Statistical power analysis for the behavioral sciences / Jacob Cohen.
- 300.727 C6781 1988
- Cohen, Jacob,
- L. Erlbaum Associates,
- 1988. ©1988
- Hillsdale, N.J. :