TY  - GEN
AU  - Kumar, K. L.
TI  - Educational technology: a practical textbook for students 
SN  - 9788122408331
AV  - LB 1028.3 KUM 2003 
PY  - 2003///
CY  - New Delhi
PB  - New Age International Ltd
KW  - Education
KW  - Educational technology
KW  - Audio visual aids
N1  - Includes bibliography and references
ER  -