000 00361nam a2200145Ia 4500
020 _a0009810181493
082 _b2254
_a510
100 _a"Dr Kho Tek Hong"
245 0 _aPrimary Mathematics 6 A
260 _bFederal Publication's Pte Ltd
_aSingapore
_c1995
300 _a120
944 _cTR
999 _c549068
_d549068