1. Abdalla MA, Abdel-Dayem MS, Ritzema HP (1990) Subsurface drainage rates and salt ieaching for typical field crops in Egypt. In: Presented papers, symposium on lang drainage for salinity control in arid and semi-arid regions, vol 3, Cairo, pp 383–392
2. Abdel-Dayem MS, Ritzema HP (1987) Subsurface drainage rates and salt leaching in irrigated lands. In: Proceedings of the third international workshop on land drainage: FI-FS, Columbus
3. Abdel-Dayem S, Ritzema HP (1990) Verification of drainage design criteria in the Nile Delta, Egypt. Irrigation Drainage Systems, vol 4. Kluwer, Dordrecht, pp 117–131
4. Abdel-Daymen MS (1987) Development of land drainage in Egypt. In: Proceedings, symposium 25th international course on land drainage. ILRI Publication 42, Wageningen, pp 195–204
5. Abdelhafez S, Hamdi H (2001) Agriculture and soil survey in Egypt. CIHEAM, pp 111–125.
http://om.ciheam.org/om/pdf/b34/01002089.pdf