000			00316nam a2200133Ia 4500
008			241226s9999 xx 000 0 und d
020			_a0
082			_bGUP
100			_aGupta Sunil
245		0	_aDigital security concepts and cases
260			_aNew Delhi : _bIim, _c2021.
350			_a300
650			_aManagement
999			_c169411 _d169411