TY  - BOOK
AU  - Tewani,G.
TI  -  Mathematics for joint entrance examination JEE (Advanced): trigonometry / 
T2  - Cengage Learning's exam crack series
SN  - 9788131529751
U1  - 510 
PY  - 2016///
CY  - Delhi
PB  - Cengage Learning
ER  -