00397nam a22001577a 450000500170000004000080001708200260002510000160005124500320006725000120009926000580011130000200016952100190018965000190020876000120022720190319102146.0  cAEF  22nd ed.a004.21bAWA.10aAwad, E. S.1 aSystem analysis and design.  a2nd ed.  aNew Delhi :bGalgotiya Publications pvt. Ltd.,c2008.  a524 p.:c24 cm.  aInclude index.  aSystem analys.  b2nd ed.