00477nam a22001697a 450000500170000001000150001702000260003203500140005803700090007208200200008110000160010124500610011725000060017826000420018427000590022630000220028520241122124107.0  aENG-142486  a9788170007227c650.00  aEN-126018  bDBAD  21a371.33400954  aKhan. Javed  aInformation and Communication Technology/cby Javed Khan  a1  bEss Ess Publicationsc2014aNew Delhi  a4831/24, Ansari Road , Darya Ganj, bNew Delhie110002  ax,173pb22cm (HB)