000 00265nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aGhosh, P.P.
245 0 _aModern Educational Technologies
260 _aJaipur
_bAavishkar
_c2005
300 _a256p.
942 _cBK
999 _c14988
_d14988