TY  - BOOK
AU  - Grewal, B. S.
AU  - Grewal, J. S. 
TI  - Numerical methods: in engineering and science
SN  - 817409248X
U1  - 519.4 
PY  - 2017/// (2021 3rd reprint)
CY  - Delhi
PB  - Khanna 
KW  - Numerical analysis
ER  -