Exemplar problems science:    class X / 
National Council of Educational Research and Training 
 - New Delhi:  NCERT,  2009. 
 - xiii, 210 pages: 
<br/><br/> Gifted by Prof. Prabha Chawla (Retd. Director Professor IGNOU) 
<br/><br/><label>ISBN: </label>9788174509673 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Dewey Class. No.: </label>500 N213E