00500nam a22001817a 4500020001800000022001800018082001700036100001900053245002600072250001700098260004200115300001200157650002100169650003900190700002100229700002000250856004800270  a9789332550230  a9789673498352  a621.38223OPP  aOppenheim, A.V  aSignals and Systems    a2nd edition.  aNew Delhi:bPearson Education,c2018.  a944p. ;  aSystem analysis	  aSignal theory (Telecommunication)	  aWillsky, Alan S.  aNawab, S. Hamid  uhttp://10.10.170.122:8080/browse/book/22877