Mangal, S. K., <br/><br/>
Essentials  of  Educational  Technology 

 - 1st /   2017. 
 - Delhi:  PHI  Learning  Private  Limited.  2017. 
 - 812p. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Education, Educational  Technology. 
<br/><br/><label>Dewey Class. No.: </label>371.33