000 00334nam a2200145Ia 4500
020 _a9789810164638
082 _bT-298
_a540
100 _a"Toon, tan yin"
245 0 _aGCE O LEVEL CHEMISTRY MATTERS
260 _aSingapor
_c2007
300 _a451
944 _cTB
999 _c102549
_d102549