Mangal,S.K <br/><br/>
Essential of Educational Technology/ 
S.K.Mangal 
 - New Delhi,  PHI Learning Private Limited,  2019 
 - 812p 
<br/><br/><label>ISBN: </label>9788120337237 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education
<br/><br/><label>Dewey Class. No.: </label>370,MAN