Gupta, Arvind <br/><br/>
Kabad se jugad : vigyan ke kuchh saste saral aur rochak prayog (Hindi) 

 - Bhopal  Eklavya Prakashan  2007 
 - 68 
<br/><br/><label>ISBN: </label>81-87171-03-0 
<br/><br/><label>Dewey Class. No.: </label>372 GA:K