Das, Subir  <br/><br/>
Competitive mathematics challenger  
Subir Das  
 - Kolkata  Chaya Prakashani  
 - xii, 932  P.B 
<br/><br/><label>ISBN: </label>9789391140045  599 
<br/><br/><label>Subjects--Topical Terms: </label><br/>COMPETITIVE EXAM 
<br/><br/><label>Dewey Class. No.: </label>R 500 DAS(COM)