000 00331nam a2200145Ia 4500
020 _a9789812808103
082 _b421
_a500
100 _a"HO PECK LENG"
245 0 _aINTERNATIONAL LOWER SECONDARY SCIENCE 1
260 _c2000
300 _a203
944 _cTB
999 _c599086
_d599086