TY  - BOOK
AU  - Aya Mohamed Yossief
TI  - spectrophotometric and HPLC analysis of certain cephalosporins (RS 502) / GP / Dr.Samia El-Gizawy // Dr. Hesham Salem 
U1  - 613 
PY  - 2010///]
PB  - MSA, 
ER  -