1. Geochemistry and beneficiation of red phosphorite in Esh Shydia area, SE Jordan;Abdalla,1995
2. IGCP 156-Phosphorites;Abed,1988
3. Shallow marine phosphorite-chert-palygorskite association, Upper Cretaceous Amman Formation, Jordan;Abed,1994
4. Petrography, geochemistry and origin of the NW Jordan phosphorites;Abed;Journal Geological Society London,1989
5. Petrography and age determination of the NW Jordan phosphorites;Abed;Dirasat,1987