Mangal, S. K. <br/><br/>
Shiksha takniki / 
S. K. Mangal and Uma Mangal 
 - Delhi:  PHI Learning,  2019 
 - xvii, 988p. 
<br/><br/><label>ISBN: </label>9788120337244 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational Technology
<br/><br/><label>Dewey Class. No.: </label>371.3078 MAN-S