Online publication: Nov. 2, 2009

URI

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DOI

https://doi.org/10.7202/900728ar CopiedAn error has occurred

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

Volume 18, Number 1, 1992, p. 171–173

Tous droits réservés © Revue des sciences de l'éducation, 1992