000 00334nam a2200145Ia 4500
020 _a9789810164638
082 _b652
_a540
100 _a"Toon, tan yin"
245 0 _aG.C.E. O level chemistry Matter
260 _aSingapor
_c2009
300 _a451
944 _cBK
999 _c744768
_d744768