TY  - BOOK
AU  - Yadav, Shiv Narayan 
AU  - Panthi, Dharma Raj 
AU  - Yadav, Birendra Prasad
AU  - Sah, Ram Lal 
AU  -  KC, Sudan 
TI  - Principles of physics grade xi
SN  - 9879937125505
U1  - 530 
PY  - 2079///
CY  - Kathmandu 
PB  - Advance Saraswati Prakashan 
ER  -