000 00326nam a2200157Ia 4500
100 _aKhing, Song Boon
080 _a510
526 _dNTB
526 _aUG
366 _f20%
942 _cBK
245 _aEffective guide H2 mathematics
260 _aFairfield book publ.
_bSingapore
_cc2016
300 _a522
546 _aE
999 _c54288
_d54288