000 00290 a2200097 4500
020 _a978-81-313-0361-0
100 _aSingh Y.K.
_aT.K. Sharma
_aBrijesh Upadhya
245 _aEducational Technology: Teaching Learning
260 _aNew Delhi
_bA P H Publishing Corporation
_c2022
942 _cBK
999 _c110960
_d110960