Oppenheim,Alan V; Willsky,Alan S; Nawab,Hamid S <br/><br/>
Signals and systems 

 - 2nd.ed 
 - Tamil Nadu  Pearson  2015. 
 - 944 p. 
<br/><br/><label>ISBN: </label>9789332550230 
<br/><br/><label>Dewey Class. No.: </label>621.38223 OPP