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020 _a9789811287213
037 _aEBOOK
040 _aCRL
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041 _aeng
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084 _qCRL
100 _aShan Zun
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245 0 _aProblems and Solutions in Mathematical Olympiad Secondary 1
260 _bWorld Scientific
260 _bWSPC/ECNUP
260 _c2024
650 _aMathematics
_9945712
856 _uhttps://www.worldscientific.com/worldscibooks/10.1142/13701#t=toc
942 _cEBOOK
999 _c1537344
_d1537344