TY  - BOOK
AU  - Thapa, Ganesh Bahadur 
AU  - Paudel, Mukti Ram
AU  - Mandal, Lalit Narayan 
AU  - Ghimire, Uttam Raj
AU  - Niroula, Som Prasad
TI  - Principles of Biology Grade 11
SN  - 9789937744386
U1  - 570 
PY  - 2078///BS
CY  - Kathmandu 
PB  - Advance Saraswati Prakashan 
KW  - Science
ER  -