000 00332nam a2200145Ia 4500
020 _a9789812718716
082 _b4220
_a510
100 _a"Gopi Krishnan"
245 0 _aMathematics Standard 4
260 _bEPB
_aSingapure
_c2007
300 _a164
944 _cBK
999 _c492804
_d492804