Nagrath,I.J Gopal,M. <br/><br/>
Control Systems Engineering 

 - 3rd Ed. 
 - Newdelhi  New Age International  2000 
 - p.826 
<br/><br/><label>ISBN: </label>8122411924 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Control Systems<br/>Nonlinear Systems
<br/><br/><label>Dewey Class. No.: </label>629.8 N147