1. Jang, J.S.R., C.T. Sun, and E. Mizutani,Neuro-Fuzzy and Soft Computing A Computational Approach to Learning and Machine Intelligence, (1997), Prentice Hall.
2. Yang, Y.G. “A Modified Adaptive Networks-Based Fuzzy Inference Controller.” Ph.D. Dissertation, MAE Department, N C State University, Raleigh, NC, USA (1998).
3. Tzafestas, S. “Digital PID and Self-Tuning Control.” inApplied Digital Control, S. Tzafestas, ed. (1985), North Holland, Amsterdam.
4. Lou, K. N., C.Y. Kuo, and L.T. Sheu, “A Novel Method for Fuzzy Self-Tuning PID Controllers.”Proc. of the IEEE Symposium, Intelligent Systems and Information, Fuzzy Systems, (1996), pp. 194199.