1. Chengzhi Zhang. (1988). “Irrigation system with underground plastic hose and the experiments.” Proc. Int. Conf. on Irrig. System Evaluation and Water Mgmt. Wuhan Univ. of Hydr. and Electr. Engrg. Wuhan China.
2. Fu Z. Li F. and He X. (1988). “Low pressure hose irrigation system for well irrigated areas.” Proc. Int. Conf. on Irrig. System Evaluation and Water Mgmt. Wuhan Univ. of Hydr. and Electr. Engrg. Wuhan China.
3. Gou Y. and Zhao Y. (1992). “Strategy of conjunctive use of saline and fresh water.” Rep. Hebei Inst. of Hydrotechnics Shijiazhuang Hebei China.
4. Hennessy J. (1993). “Water management in the 21st century.” Proc. 15th Congr. Int. Commission on Irrig. and Drain. Int. Commission on Irrig. and Drain. New Delhi India.
5. Le Moigne G. (1993). “Comprehensive water resources management: A framework.” Proc. 15th Congr. Int. Commission on Irrig. and Drain. Int. Commission on Irrig. and Drain. New Delhi India.