1. H.H. Yang, G.P. Yang and K.N. Chen: Identification and Optimum Control of Metal Cutting Process. (Proceedings of 21st Int. M.T.D.R. Conference, September 1980 Swansea, UK.)
2. J.H. Laning Jr. and R.H. Battin: Random Processes in Automatic Control, 1956.
3. (Shanghai Jiaotong University): Principles of Optimal Estimation;Yuan,1980
4. Research Institute of Mathematics, The Academy of Sciences of China: Mathematical Method for Filtering in Time Discrete System, 1975 Beijing.
5. Research Institute of Computation of Zhejiang Province: Programming and Interfacing of Microprocessor Z80, 1981.