1. Effects of Drought on Streamflow Characteristics
2. A PROPOSED METHOD FOR DROUGHT MONITORING
3. Floris V. Simons D. and Simons R. (1989). “Utilization of expert systems for the operation of reservoir systems.” Hydr. Engrg. Proc. ASCE New York N.Y. 1090–1095.
4. Giarratano J. and Riley G. (1989). Expert systems: principles and programming . PWS/Kent Publishing Co. Boston Mass.
5. Graham I. and Jones P. L. (1988). Expert systems: knowledge uncertainty and decisions . Chapman & Hall Ltd. London England.