1. Al-Helou, M., Environmental Protection Law: Shariet Perspective (in Arabic), University Publishing House, Alexandria, 1995.
2. Ba Kader, A., Al-Sabagh, A., Al Glenid, M., and Izzi Deen, M., Islamic Principles for the Conservation of the Natural Environment (in Arabic, English, and French). A Joint Publication of the International Union for Conservation of Nature and Natural Resources and the Meteorological Protection Administration (MEPA) of the Kingdom of Saudi Arabia. Gland, Switzerland, 1983.
3. Bicciato, F., Faggi, P. Gezira Scheme between State and Market: Some Remarks on the Privatization of Irrigation in Sudan. GEOJOURNAL 1995 Vol. 37, No. 1, pp. 101-104.
4. Caponera, D.A. Water Laws in Moslem Countries. Food and Agriculture Organization of the United Nations, Rome, Irrigation and Drainage Paper No 20/1, 1973.
5. Dasouqi, L., Shatheli, H., and Brat, M., Islamic Approach for Environmental Protection, Arabic Center for Environmental Awereness, Cairo, 1998.