Patak R P Upadhyay B K <br/><br/>
Shaushik proudhyogiki evam kriyaatmak anusandhan/ 
by Patak R P and Upadhyay B K 
 - New Delhi:  Abhishek,  2007. 
 - 224p. 
<br/><br/><label>ISBN: </label>9788183900256 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational Technology<br/>Education<br/>Social Sciences
<br/><br/><label>Dewey Class. No.: </label>H 371.33  / PAT/S