The International handbook of virtual learning environments / 
edited by Joel Weiss ... [et al.] 
 - Dordrecht :  Springer,  2006 
 - 2 v. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>140203802X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer-assisted instruction<br/>Internet in education