TY  - BOOK
AU  - Ray, P. K. S. 
TI  - Educational technology : technology of instructional design Part-I
SN  - 978-93-82007-71-5
U1  - 371.33 23rd.
PY  - 2015///
CY  - New Delhi 
PB  - Dominant Publishers 
KW  - Educational technology
UR  - www.dominantbooks.com 
ER  -