Berti, Ana Emilia <br/><br/>
Acquisition of the profit concept by third-grade children 

 - 293-299 
 - 1992 17, No. 3 
<br/><br/>Enero 1993 
 = CONTEMPORARY EDUCATIONAL PSYCHOLOGY 
<br/><br/><label>Encabezamiento--Término de Indización: </label>COMPRENSION ESTUDIANTES DE LA ESCUELA ELEMENTAL FORMACION CONCEPTUAL GRADO 4 TEORIA PIAGETIANA