000 00328nam a22001337a 4500
999 _c15123
_d15123
005 20231215153717.0
008 231124b ||||| |||| 00| 0 eng d
020 _a817169408X
100 _aSINGH, UTTAM KUMAR
245 _aTEACHING OF SCIENCE
260 _aNEW DELHI
_bCOMMONWEALTH
_c2023
300 _a256 p.
942 _2ddc
_cBK