000 00321nam a2200145Ia 4500
020 _a9780195979558
082 _bT 538
_a510
100 _a"Dr yeap ban har"
245 0 _aMathmatics 1
260 _aSingapore
_c2007
300 _a400
944 _cTB
999 _c517568
_d517568