1. The New Collins Concise English Dictionary,1982
2. Hydropolitics of the Nile valley;Waterbury,1979
3. Hydropolitics: conflicts over water as a development constraint;Ohlsson,1995
4. Rivers of discord. International water disputes in the Middle East;Shapland,1997
5. Dividing common water resources according to international water law: the case of the Palestinian–Israeli waters;Elmusa;Natural Resources Journal,1995