000 00354nam a2200145Ia 4500
020 _a9789812808172
082 _bT 158
_a500
100 _a"Leng,Ho Peck"
245 0 _aInternational Lower Secondary Science teacher 3(Photocopy)
260 _c2009
300 _a1000
944 _cTR
999 _c759383
_d759383