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020 _c175
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040 _aBED
082 _a507.1 SIN-V
100 _aSingh, Suresh
_921264
245 0 _aVigyan shikshan
250 _a2nd
260 _bAnubhav Publishing House
_aAllahabad
_c2013
300 _a360p.
500 _a2990
650 _aFaculty of Education
_918744
700 _aGupta, Y. K.
_921265
942 _cBK
999 _c2990
_d2990