寫給每個人的社會學讀本：把你的人生煩惱，都交給社會學來解決吧 (二手書交易資訊)

[{"sale_price":792,"disc":263,"prod_count":4,"sale_month":"202005","avg_price":198,"avg_disc":66},{"sale_price":398,"disc":132,"prod_count":2,"sale_month":"202006","avg_price":199,"avg_disc":66},{"sale_price":565,"disc":188,"prod_count":3,"sale_month":"202007","avg_price":188,"avg_disc":63},{"sale_price":766,"disc":254,"prod_count":4,"sale_month":"202008","avg_price":191,"avg_disc":64},{"sale_price":472,"disc":157,"prod_count":3,"sale_month":"202009","avg_price":157,"avg_disc":52},{"sale_price":629,"disc":210,"prod_count":4,"sale_month":"202010","avg_price":157,"avg_disc":53}]