Online publication: Nov. 23, 2009

URI

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DOI

https://doi.org/10.7202/900715ar CopiedAn error has occurred

A document of the journal Revue des sciences de l'éducation

Volume 17, Number 3, 1991, p. 531–533

Tous droits réservés © Revue des sciences de l'éducation, 1991