Oppenheim,Alan V; Schafer,Ronald W <br/><br/>
Discrete-Time Signal Processing 

 - 3rd.ed 
 - Tamil Nadu :  Pearson ,   2016 
 - 1052 p.  iil ,   24 cm .  
<br/><br/><label>ISBN: </label>9789332535039 
<br/><br/><label>Dewey Class. No.: </label>621.38 OPP