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020 _a81-7648-544-6
041 0 _aeng
082 _a500.71
_bRES
245 1 0 _aResearch in teaching of Science and Mathematics /
250 _a1st.
260 _aNew Delhi:
_bAshish,
_c2004.
300 _avii,309p..
362 1 _a2004.
365 _ehb.
504 _a.
650 0 _aNatural Sciences and Mathematics
942 _cBK
999 _c11168
_d11168