00630nam a22001697a 4500020001500000040000900015082001500024100002500039245005800064250001600122260004200138650004300180942001200223999001900235952010300254952010300357  a8178080982  cNUST  a004.6bHAL  aHalsall, Fred956457  aData Communication Computer Networks and Open Systems  a4th Edition  aSingapore:bPearson Education,c2002.  aComputer Communication Networks995639  2ddccBK  c611002d611002  00102ddc4070aCEMEbCEMEcGENd2024-08-20l0o004.6 HALpCEME-36243r2024-08-20w2024-08-20yBK  00102ddc4070aCEMEbCEMEcGENd2024-08-20l0o004.6 HALpCEME-36244r2024-08-20w2024-08-20yBK