000 00335nam a22001457a 4500
005 20240221110908.0
008 240221b |||||||| |||| 00| 0 eng d
082 _bAGG
100 _aAggarwal, J.C.
_986
245 _aEducational Technology
250 _aFirst
260 _bVikas Publishing House
_c2022
300 _a517
942 _cBD
999 _c7166
_d7166