TY  - BOOK
AU  - Tyagi, Praveen
TI  - Secrets behind faster calculations: train your brain to become a human calculator
SN  - 9789392837777
U1  - 515 
PY  - 2024///
CY  - New Delhi
PB  - GKP
KW  - 
KW  - Secrets behind faster calculations
KW  - Calculation
ER  -