000 00393nam a2200169Ia 4500
005 20170427172918.0
008 160502s9999 xx 000 0 und d
040 _cLIRC
082 _a371.33 MUK
100 _aMukhopadhyay, Marmar.
245 _aEducational technology
260 _aNew Delhi
260 _bShipra Publications
260 _c2004
300 _a195 p.
942 _2ddc
_cGB
999 _c17090
_d17090