TY  - BOOK
AU  - Thakur, Rajesh Kumar
AU  - Thakur, Rajesh Kumar
TI  - Speed mathematics
SN  - 9789353040895
U1  - 513.9 
PY  - 2018///
CY  - Delhi
PB  - Rupa publications india
KW  - Mathematics
KW  - Speed maths
ER  -