1. Re-evaluation of the upper Eocene rock units in west central Sinai, Egypt. Middle east research center;Abul-Nasr;Ain Shams University, Earth Science Series,1990
2. Paleoecology and sedimentology environments of middle-upper Eocene rocks in west-central Sinai, Egypt. Middle east research center;Abul-Nasr;Ain Shams University, Earth Science Series,1992
3. Re-evaluation of the middle–upper Eocene biostratigraphy of west-central Sinai. Middle east research center;Abul-Nasr;Ain Shams University, Earth Science Series,1993
4. Contribution to the Eocene biostratigraphy in Sinai. Middle east research center;Abul-Nasr;Ain Ain Shams University, Earth Science Series,1993
5. Eocene biostratigraphy of Wadi Wardan, Sinai, with especial emphasis on calcareous nannofossils. Middle east research center;Abul-Nasr;Ain Shams University, Earth Science Series,1994