1. Biologically induced iron ore at Gunma iron mine;Akai;Jpn. Am. Min.,1999
2. Geology and iron ore deposits of Bahariya Oasis;Akkad;Geol. Surv. Egypt, Pap.,1963
3. Geology, geochronology fluid inclusion and isotope geochemistry of the Rodalquilar gold alunite deposit, Spain;Arribas;Econ. Geol.,1995
4. The geology of the iron-ore deposits of Egypt;Attia;Geol. Surv. Egypt, Cairo,1950
5. Bahariya Oasis, its topography and geology;Ball;Egypt. Surv. Dept., Cairo,1903