000 00338nam a2200145Ia 4500
020 _a9789812808127
082 _bT104
_a500
100 _a"LENG HO PECK"
245 0 _aINTERNATIONAL LOWER SEC, SCIENCE 3
260 _aSINGAPORE
_c2019
300 _a308
944 _cTB
999 _c361047
_d361047