Online publication: Nov. 26, 2009

URI

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DOI

https://doi.org/10.7202/900625ar CopiedAn error has occurred

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

Volume 15, Number 1, 1989, p. 166–169

Tous droits réservés © Revue des sciences de l'éducation, 1989