00435nam a22001457a 4500003000400000005001700004008004100021040002300062050002200085100001900107245006900126260004500195300001300240650003600253OSt20210915110755.0140908b        xxu||||| |||| 00| 0 eng d  aCUKbengcCUKdCUK  aQA 402b.S25 1997  aSaleemi, N. A.  aSystem Theory Analysis and Design Simplifiedc[by] N. A. Saleemi  aNairobi- Kenya:bGalaxy printers,c1997.  a393 p. : 0aSystem analysis | System design