TY  - BOOK
AU  - Mangal, S. K.
AU  - Mangal, Uma
TI  - Essentials of educational technology
SN  - 978-81-203-3723-7
U1  - 371.39 MAN/R 
PY  - 2025///
CY  - Delhi
PB  - PHI Learning Private Limited
KW  - EDUCATION- TECHNOLOGY
ER  -