TY  - BOOK
AU  - Gurung, Tek Raj 
AU  - Ghimire, Tirtha Raj 
TI  - Pioneer Basic Biology Grade XI 
SN  - 9789937755788
U1  - 570 
PY  - 2080///BS.
CY  - Kathmandu 
PB  - Dreamland Publication 
ER  -