Khan, Ratan Mohan, <br/><br/>
Algebra  Textual Documents 
By Ratan Mohan Khan 
 - 5th ed. 
 - West Bengal  New Central Book Agency  2006 
 - pg176:  23cm. 
<br/><br/><label>ISBN: </label>9788173812217 
<br/><br/><label>Subjects--Index Terms: </label>Mathematics G- Mathematics Algebra 
<br/><br/><label>Dewey Class. No.: </label>512.02