sábado, 29 de novembro de 2014

PROBLEMS and SOLUTIONS in MATHEMATICS Compiled by: Chen Ji-Xiu, Jiang Guo-Ying, Pan Yang-Lian, Qin Tie-Hu


PROBLEMS and
SOLUTIONS in
MATHEMATICS
Compiled by:
Chen Ji-Xiu, Jiang Guo-Ying,  Pan Yang-Lian, Qin Tie-Hu,

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