000 00334nam a2200145Ia 4500
020 _a9789810164638
082 _b1182
_a540
100 _a"Toon, Tan Yin"
245 0 _aGCE O level chemistry Matters
260 _aSingapore
_c2010
300 _a451
944 _cBK
999 _c529367
_d529367