000 00313nam a2200133Ia 4500
008 211201s2004 xx 000 0 eng d
082 _a371.33
100 _aRAO, V.K
245 0 _aEDUCATIONAL TECHNOLOGY
260 _bAPH PUBLICATION
_aNEW DELHI
_c2004
300 _a407
650 _aEducation
942 _2ddc
_cDOE
999 _c3983
_d3983