M. David Merrill; Jeroen van Merrienboer; Michael J. Spector; Marcy P. Driscoll; David Jonassen; Marcy Driscoll <br/><br/>
Handbook of Research on Educational Communications and Technology  A Project of the Association for Educational Communications and Technology 

 -  Taylor and Francis  2008 
<br/><br/><label>ISBN: </label>9780203880869 
<br/><br/><label>Source: </label>EBOOK