Singh, N. K. <br/><br/>
Bihar Secondary Teacher Eligibility Test Mathematics (For Classes Ix-X) 
/ Dr. N.K. Singh 
 - 1st edition 
 -  Upkar Prakashan  2023 
 - 360 pages 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Dewey Class. No.: </label>370.113  / SIN