000 00428nam a2200193Ia 4500
003 OSt
005 20230614120435.0
008 180323s9999 xx 000 0 und d
040 _cDDC
082 _a370
100 _aMangal
245 0 _aEssentials of educational technology
_h(English)
250 _a1st
260 _aNew Delhi
_bNCRT
_c2010
300 _a812
500 _a3843
650 _aCOMMERCE
942 _cBOOK
_2ddc
999 _c9650
_d9650