Kuo, Benjamin C. <br/><br/>
Automatic Control Systems 
Benjamin C. Kuo , Farid Golnaraghi 
 - 8th.ed. 
 - New Jersey  Prentice Hall  2003 
<br/><br/> includes index: p.606 - 609 
<br/><br/><label>ISBN: </label>0471381489 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Automatic control