Achievement values, standards and expectations their effect on children's task persistence and academic competence.
| मुख्य लेखक: | |
|---|---|
| स्वरूप: | पुस्तक |
| भाषा: | English |
| प्रकाशित: |
[Ann Arbor, Mich.
University Microfilms
1967].
|
| विषय: |