000 00307nam a22001217a 4500
040 _cHS
082 _a658
100 _aអ៊ុន ប៊ុនលាង
245 _aMathematical methods for business and economics
260 _aNA
_bអ៊ុន ប៊ុនលាង
_cNA
300 _a384p;
942 _cEK
999 _c9946
_d9946