000
00290 a2200097 4500
020
_a
978-81-313-0361-0
100
_a
Singh Y.K.
_a
T.K. Sharma
_a
Brijesh Upadhya
245
_a
Educational Technology: Teaching Learning
260
_a
New Delhi
_b
A P H Publishing Corporation
_c
2022
942
_c
BK
999
_c
110960
_d
110960