TY  - BOOK
AU  - Bhatti,Sana Ullah
AU  - Bukhari,S.Ijaz Hussain
AU  - Naqvi,Amir Hussain
AU  - Yusuf,S.M.
AU  - Ali,Akbar
AU  - Shami,ShMuhammad Hafeez
AU  - Hussain,Faheem
TI  - A textbook of algebra and trigonometry: class XI 
U1  - 512.13 
PY  - 1992///
CY  - Lahore
PB  - Punjab textbook Board
KW  - Mathematics
ER  -