成長駭客Growth Hacker：未來十年最被需要的新型人才，用低成本的創意思考和分析技術，讓創業公司的用戶、流量與營收成長翻倍 (二手書交易資訊)

[{"sale_price":567,"disc":135,"prod_count":2,"sale_month":"202005","avg_price":283,"avg_disc":68},{"sale_price":581,"disc":138,"prod_count":3,"sale_month":"202006","avg_price":193,"avg_disc":46},{"sale_price":319,"disc":76,"prod_count":2,"sale_month":"202007","avg_price":159,"avg_disc":38},{"sale_price":897,"disc":213,"prod_count":5,"sale_month":"202008","avg_price":179,"avg_disc":43},{"sale_price":160,"disc":"38","prod_count":1,"sale_month":"202009","avg_price":160,"avg_disc":38},{"sale_price":295,"disc":70,"prod_count":2,"sale_month":"202010","avg_price":147,"avg_disc":35}]