PATRI,Digambar and PATRI,DN <br/><br/>
Quantitative Techniques 

 - 2nd Ed  Revised Edition 
 -  Kalyani Publications ,  2005 
<br/><br/><label>ISBN: </label>81-272-1930-4 
<br/><br/><label>Dewey Class. No.: </label>658  / PAT/Q