Samia Abdel - Aziz Ahmed creator preparation. Mohamed Ahmed Abdel- Naby thesis advisor. Abdel-Monem Afifi thesis advisor. Emam Abdel-Mobdy Abdel-Reheem thesis advisor. text theses ua 1994 monographic eng ara 175 Leaves : illustrations ; 30 cm. + specialized By Samia Abdel- Aziz Ahmed; Supervised Prof.Dr. Emam Abdel-Mobdy Abdel-Reheem, Prof.Dr. Mohamed Ahmed Abdel-Naby, Prof.Dr. Abdel-Monem Afifi Thesis (M.Sc.) -Cairo University, 1994 Bibliography: pages 154 : 175 Biochemical microbial proteolytic EG-GICUC 260218 20260412123637.0 eng