000 00310nam a2200121Ia 4500
005 20260325112419.0
008 260325s9999||||xx |||||||||||||| ||und||
082 _a025.042 Si64D
100 _aSingh,S.P
245 0 _aDigital library technology
260 _aNEW DELHI
_bOmega Publications.
_c2019
942 _cBK
999 _c274757
_d274757