000 00299nam a2200109Ia 4500
008 201121s9999 xx 000 0 und d
100 _aSebastian,K.L.
245 0 _aResonance Journal of science education
260 _bNewdelhi: Indian academy of science, springar.
300 _c592
942 _cBV
999 _c16776
_d16776