Khan Sir <br/><br/>
Science numericals :  Physics & Chemistry / 

 - Delhi  Kiran prakashan pvt. ltd  2021 
 - 280p.  ill. 
<br/><br/> 2300+ objective questions<br/>Railway group 'D' NTPC 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Dewey Class. No.: </label>500  / K527S