Mohamed, Adel; S. Araffa, Nagi Mahmoud (2011). "Delineation of Near-Surface Structure in the Southern Part of 15th of May City, Cairo, Egypt Using Geological, Geophysical and Geotechnical Techniques". Pure and Applied Geophysics. 169 (9): 1641–1654. doi:10.1007/s00024-011-0415-y. S2CID129104836.
Mohamed, Adel; S. Araffa, Nagi Mahmoud (2011). "Delineation of Near-Surface Structure in the Southern Part of 15th of May City, Cairo, Egypt Using Geological, Geophysical and Geotechnical Techniques". Pure and Applied Geophysics. 169 (9): 1641–1654. doi:10.1007/s00024-011-0415-y. S2CID129104836.