Encyclopedia of distance learning / 
Caroline Howard ... [et al.] 
 - Hershey, PA :  Idea Group Reference,  2005 
 - 4 v. :  ill. ;  29 cm. 
<br/><br/>Includes bibliographical references and indexes 
<br/><br/> 'This encyclopedia offers the most comprehensive coverage of the issues, concepts, trends, and technologies of distance learning. More than 450 international contributors from over 50 countries'--Provided by publisher 
<br/><br/><label>ISBN: </label>1591405556 (hardcover)  RM995.00 (4v 1 set) 1591405548 (ebook) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Distance education--Encyclopedias