000 00401nam a2200145Ia 4500
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040 _e83890
_aMAIN
041 _aEnglish
082 _a372.3 G959R
100 _aGupta, Naresh Kumar
245 0 _aResearch in teaching of science: Models and strategies
260 _aNew Delhi
_bAPH Publishing Corporation
_c1997
300 _axi, 210 p.
942 _cBK
999 _c97481
_d97481