TY  - BOOK
AU  - Pathak,R P
TI  - शैक्षिक प्रौद्योगिकी
SN  - 9788131760079
U1  - 370.024 6 PAT 
PY  - 2011///
CY  - Delhi
PB  - Pearson
UR  - https://books.google.co.in/books?id=N3oh-W_eXTwC&source=gbs_ViewAPI&redir_esc=y
ER  -