00388nam a2200145 a 4500008004100000020002200041100001900063245006100082260002400143300002100167650002700188003000100215005001700216040000900233                                          a8123900325 (pbk.)  aJairath, A. K.  aSolutions and problems of control systems/cA.K.Jairath.  aDelhi :bCBS,c1992  a335 p.;c 22 cm.  aRelay control systems.20230123133625.0  cNUST