00524     2200181   4500001002100000005001500021035002000036007000300056008003900059100003300098245007600131250001000207264001900217336002100236337002300257338003800280650002400318INLIS00000000000743820210401095214  a0010-0421000005ta210401                |          | |  0 aWilliam StallingsePengarang1 aBusiness Data Communications :bInfrastructure, Networking and Security  aed. 7  bPearson,c2013  2rdacontentaTeks  2rdamediaaKomputer  2rdacarrieraSumber Sambung Jaring 4aData Communications