00289nam a2200121 a 450000500170000008200160001710000190003324500310005225000110008326000340009430000200012850000190014820251203090451.0  a004.21bAWA  aAwad, Elias M.  aSystem analysis and design  a2nd ed  aNew Delhi, Galgotia, Inc1995  axiv,524p.c22cm  aincludes index