Dangos 1 - 1 canlyniadau o 1 ar gyfer chwilio 'Battle, Esther Steinhauer 1937-', amser ymholiad: 0.01e Mireinio'r Canlyniadau
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    Achievement values, standards and expectations their effect on children's task persistence and academic competence. gan Battle, Esther Steinhauer 1937-

    Cyhoeddwyd 1967
    Llyfr

    Achievement values, standards and expectations their effect on children's task persistence and academic competence.

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