Valerien, J. (1991). Innovations for large classes: A guide for teachers and administrators. UNESCO.
Tohutoru Kātū ChicagoValerien, Jean. Innovations for Large Classes: A Guide for Teachers and Administrators. Paris: UNESCO, 1991.
Tohutoro MLAValerien, Jean. Innovations for Large Classes: A Guide for Teachers and Administrators. UNESCO, 1991.
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