TY  - GEN
AU  - Chulawansa , S. M. L.
AU  - Fernando , M. P. W. S. 
AU  - Fernando , M. J. A.W. 
TI  - Algebra: Pure mathematics Blok 1,2 Unit 1,2
U1  - 512 
PY  - 2001///
CY  - Sri Lanka
PB  - Open university
KW  - MATHEMATICS
KW  - ALGEBRA
KW  - QUADRATIC EQUATIONS
KW  - QUADRATIC EXPRESSIONS
KW  - LOGARITHMS
ER  -