TY  - BOOK
AU  - Sampath,K.
AU  - Panneerselvam,A.
AU  - Santhanam,S.
TI  - Introduction to educational technology
SN  - 8120709721
U1  - 370.7 
PY  - 1990///
CY  - New Delhi
PB  - Sterling Publishers
KW  - Educational technology
KW  - Teaching
KW  - Aids and devices
N1  - Includes index; Bibliography: p.339-42
ER  -