卖书econ299

汐熙

econ299 书两本
) s  ^- \1 \) J1. an introdution to quantitative methods in economics
% k' l7 B* X" Y1 y4 B/ w# }3 f+ ]2.Lab manual
7 v+ d/ k# Z, S8 E7 _8 A, $50 价格可商量
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