Willis Jerry W Ed. <br/><br/>
Constructivist instructional design (C ID): Foundations, models and examples 

 - Charlotte, NC  Information Age Publishing, Inc.  2009 
 - xi, 515p. 
<br/><br/><label>ISBN: </label>978-1-107-54870-1 
<br/><br/><label>Source: </label>Reference