TY  - BOOK
AU  - Acharya, S. K.
ED  - Somani, L.L.
TI  - Preparation and use of audio-visual aids
SN  - 9788183213035
U1  - 371.33 
PY  - 2013///
CY  - Udaipur :  
PB  - Agrotech Publishing Academy
ER  -