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1
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2
-
3
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4
Children's helping behaviour personality factors and parental influences related to helping behaviour
Gepubliceerd in 1980Boek -
5
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6
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7
Personality development at preadolescence explorations of structure formation
Gepubliceerd in 1968Boek -
8
Modes of thinking in young children a study of the creativity-intelligence distinction
Gepubliceerd in 1965Boek -
9
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10


