000 00323nam a2200133Ia 4500
008 220201s2020 xx 000 0 eng d
041 _aENG
100 _aCHOUDHURY, D ROY
245 0 _aNETWORK AND SYSTEMS
250 _a2ND
260 _aNEW DELHI
_bNEW AGE INTERNATIONAL PUBLISHERS
_c2020
300 _a946
942 _2ddc
999 _c63420
_d63420