"Alok Kumar, " <br/><br/>
CSIR-UGC Net/jrf/set Mathematical Sciences 

 - \\201300ENGGPSX 
 - Upkar Prakashan Publisher   2013  Agra  
 - 792p.  
<br/><br/> includes index and biblioraphy 
<br/><br/><label>ISBN: </label>9.79E+12