1. The Geography and Geology of West Central Sinai;Ball,1916
2. The Topography and Geology of the Peninsula of Sinai (Western Portion);Barron,1907
3. Paleozoic stratigraphy, paleogeography and paleotectonics in Gulf of Suez;Beleity,1986
4. Paleozoic vertical movements in Um Bogma area, southwestern Sinai;Beyth;Bull. AAPG.,1981
5. Mineralogical studies on the Carboniferous uraniferous sediments of West Central Sinai;Dabbour,1988