00489nam a2200169Ia 4500008004100000041000800041082001600049100000900065245004600074250000600120260004200126300000800168440000600176650000900182999001900191952010900210210716s1982    xx            000 0 und d  aeng  a004.21 LEEB  aLee.  aIntroducing systems analysis  and design.  a1  aNew DelhibGalgotia Book Sourcec1982  a168  vI  aNone  c180773d180773  001040708MCAaAIMITbAIMITd2021-07-16l0o004.21 LEEBpMCA00281r2025-07-21 00:00:00w2021-07-16yBK