Oppenheim, Alan V. & Schafer, Ronald W. <br/><br/>
Discrete time signal processing  

 - 3rd ed . 
 - Pearson   New Delhi  2013 
 - 1132 
<br/><br/>
<br/><br/><br/>E 
<br/><br/><label>Universal Decimal Class. No.: </label>621.38043 Opp/Sch