000 00428nam a2200181Ia 4500
003 OSt
005 20260331130845.0
008 250729s2012 xx 000 0 und d
040 _cAL
041 _aeng
082 _a370.15 CHIE
100 _aChitra Singh
_9230745
245 _aEducational technology
260 _aAgra
_bAggarwal Publication
_c2012
300 _a158p
650 _aTechnology
_9230746
942 _2ddc
_cBED
999 _c238935
_d238935