000 00243nam a22001217a 4500
003 SGT
082 _bSHA
100 _aSHARAFUDEEN, S.
245 _aPEDAGOGY OF SCIENCE
260 _aDELHI
_bAPH
_c2018
300 _a170
942 _2ddc
_cBK
_08
999 _c19886
_d19886