Volume & Issue: Volume 32, OCTOBER- DECEMBER - Serial Number 4, December 2011 
The Use of Biotechnology for Biodegradation of Paper Manufacturing Wastes (Kraft Lignin) Via Egyptian Bacterial Isolates

Pages 392-399

Abuo Gabal A. ashgan; Abd Elsalam E. Hassan; Abd Al-Aziz A. Samia; El-Hanafy A. Amr; Mohamed E. Abdallah

Management of Groundwater Using Mathematical Model at Bahariya Oasis, Egypt

Pages 498-514

Himida, I.H .; Holial, H.M.; Shaaban, M.N.; El-Fiky, A.A.; Abd El-Latif, R.M.