000 00318nam a2200145Ia 4500
020 _a9780195979596
082 _b2426
_a510
100 _a"Seng,Teh Keng"
245 0 _aMATHEMATICS work book 1
260 _c2011
300 _a162
944 _cTR
999 _c525359
_d525359