Babu, P. Ramesh. <br/><br/>
Digital signal processing / 

 - 4th ed. 
 - Chennai,  Scitech Publications,  c2001. 
 - MQ. 40p. ;  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>9788183710817 
<br/><br/><label>Dewey Class. No.: </label>621.3822