TY  - BOOK
AU  - Ray,P.K.S.
TI  - Educational technology: technology of instructional design part-II
SN  - 9789380642222
U1  - 371.33 
PY  - 2012///
CY  - New Delhi  
PB  - Dominant Publishers  
KW  - Educational technology
N1  - Includes bibliography
ER  -