Achievement values, standards and expectations their effect on children's task persistence and academic competence.
| Príomhchruthaitheoir: | |
|---|---|
| Formáid: | LEABHAR |
| Teanga: | English |
| Foilsithe / Cruthaithe: |
[Ann Arbor, Mich.
University Microfilms
1967].
|
| Ábhair: |