000 00348nam a2200133Ia 4500
005 20250729165807.0
008 250729s2002 xx 000 0 und d
041 _aeng
082 _a371.25 MANE
100 _aS.K.Mangal
_9233137
245 _aEducational Technology
260 _aLudhiyana
_bTandon Publication
_c2002
650 _aTechnology
_9233138
999 _c240131
_d240131