Oppenheim <br/><br/>
Discrete - Time Signal Processing / 
by Alan V. Oppen heim and Ronald W. Schafer 
 - 3rd Ed. 
 - Chennai:  Pearson,  2016. 
 -  1051p.  Includes index 
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>9789332535039 
<br/><br/><label>Dewey Class. No.: </label>621.391.8Q60