[1]Franklin, G. J.D. Powell, J.D. Emami-Naeini, A. Feedback Control of Dynamic
Systems (5th Edition) (Hardcover) by Gene Franklin, J.D. Powell, Abbas Emami-
Naeini Publisher: Prentice Hall; 5 edition (October 31, 2005) ISBN: 0131499300
[2] King, M.Process Control. John Wiley & Sons 2011-01-14, ISBN-10 : 0470975873.