000 00338nam a2200145Ia 4500
020 _a9814023264
082 _b.503
_a510
100 _a"Lin, Foong Pui"
245 0 _aMathematics Sec.-2:Tropical Approach
260 _aSingapore
_c1999
300 _a80
944 _cBK
999 _c384757
_d384757