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Effects of instructional support within constructivist lear..:

Hardy, Ilonca ; Jonen, Angela ; Möller, Kornelia.
Journal of educational psychology.  98 (2006)  2 - p. 307-326 , 2006
Exemplar:  Zentrale:E03 z psy 860 j/35; Zentrale:Magazin Zs fc 3935