TY  - BOOK
AU  - Pathak, R. P.
AU  - Chaudhary, Jagdeesh
TI  - Educational technology
SN  - 9788131754290(pbk.)
U1  - 371 23
PY  - 2012///
CY  - New Delhi
PB  - Pearson Education
KW  - Education
ER  -