TY  - BOOK
AU  - Mangal, S. K.
TI  - Essentials of educational technology
SN  - 978-81-203-3723-7 
U1  - 372.3/4071 
PY  - 2019///
CY  - Delhi
PB  - PHI Learning
KW  - Educational technology
KW  - Education
N1  - Includes bibliographical references and index
ER  -