00264nam a2200109 a 450000500170000002000150001708200180003210000190005024500270006926000330009630000250012920251203110431.0  a8185771669  a303.4833bGUP  aGupta, Praveen  aInformation Technology  aJaipurbABD Publishersc2003  axi, 237p.c22 cm. HB