1. Milne, R. and Montgomery A. (eds) (1994) Applications and Innovations in Expert Systems II (Proceedings of Expert Systems 94), SGES Publications.
2. Mayers, W. (1986) Introduction to expert systems. IEEE Expert, Spring, 100–108.
3. Harmon, P. and Sawyer B. (1990) Creating Expert Systems, John Wiley.
4. Citrenbaum, R., Geissman, J.R. and Schultz, R. (1987) Selecting a shell. AI Expert, September, 30–39.
5. Gevarter, W.B. (1987) The nature and evaluation of commercial expert system building tool. Computer, May, 24–41.