Online publication: Oct. 20, 2009

URI

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DOI

https://doi.org/10.7202/900293ar CopiedAn error has occurred

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

Volume 6, Number 2, Spring 1980, p. 391–395

Tous droits réservés © Revue des sciences de l'éducation, 1980