Vallerand, Robert J. <br/><br/>
On the assessment of intrinsic, extrinsic, and amotivation in education : Evidence on the concurrent and construct validity of the academic motivation scale / [et al.] 

 - 159-172 
 - 53, No. 1, 1993 
<br/><br/>Septiembre 1993 
 = EDUCATIONAL AND PSYCHOLOGICAL MEASUREMENT 
<br/><br/><label>Encabezamiento--Término de Indización: </label>AUTOMOTIVACION CONSTRUIR VALIDEZ ESTUDIANTES EN COLEGIOS DE DOS A\197OS INCENTIVOS MOTIVACION DEL ESTUDIANTE VALIDEZ CONCURRENTE