Babu, P. Ramesh <br/><br/>
Signals and systems 
by P. Ramesh Babu and R. Anandanatarajan 
 - 4th ed. 
 - Chennai:  Scitech Publications (India) Pvt. Ltd.  c.2010 
<br/><br/><label>ISBN: </label>9788183712880 
<br/><br/><label>Dewey Class. No.: </label>D66  / Q0