Mohamed Mahmoud Naguib Hosni creator preparation. Abdel Salam Salem thesis advisor. Abdel Fattah Abouleid thesis advisor. A. Amr Darrag thesis advisor. text theses ua 1994 monographic eng ara 153 Pages : illustrations ; 25 cm. + specialized By Mohamed Mahmoud Naguib Hosni ; Supervised Dr. Abdel Fattah Abouleid, Dr. Abdel Salam Salem, Dr. A. Amr Darrag Thesis (Ph.D)-Cairo University, 1994 Bibliography: pages 148 : 153 Study onproperties and efficiency soil liners EG-GICUC 260222 20260405121351.0 eng