TY  - BOOK
ED  -  iGNHaS
TI  - Bhutan journal of research & development
U1  - A1  iGNHaS 
PY  - 2019///
CY  - Thimphu
PB  - Royal University of Bhutan
KW  - Bhutan Journal of Research & Development
N1  - Bibliographic references
ER  -