000 00315 a2200133 4500
082 _a512
_bOPE
090 _c7085
_d9865
100 _aThe Open university of Sri Lanka
245 _aAlgebra
_bunit 2
260 _aNawala
_bThe Open University of Sri Lanka
300 _a134p.
_c28cm
650 _aAlgebra
942 _cL
999 _c35812
_d35812