1. Upper cretaceous planktonic foraminiferal zonation and correlation in the northern part of Western Desert, Egypt. Neues Jahrbuch für Geologie und Pal€aontologie;Abdel-Kireem;Abhandlungen,1995
2. Geology of Kopet-Dagh;Afshar-Harb,1994
3. Paleoecology of Abtalkh Formation based on planktonic and benthic foraminifera in Padeha section, Kopet-Dagh Basin;Ahmadi;Sedimentary Facies,2013
4. Variations in the global carbon cycle during the cretaceous related to climate, volcanism, and changes in atmospheric CO2. The Carbon Cycle and Atmospheric CO2;Arthur;Natural Variations Archean to present,1985
5. The Cenomanian-Turonian oceanic anoxic event, II. Palaeoceanographic controls on organic-matter production and preservation;Arthur,1987