Vásquez Andrade, PiedadCorrea Serrano, Ginger MaribelLoja Landy, Zoila Margarita2014-06-302014-06-301998http://dspace.ucuenca.edu.ec/handle/123456789/16280application/pdfspaopenAccesshttp://creativecommons.org/licenses/by-nc-sa/3.0/ec/VygotskiTesis En PsicologiabachelorThesis