1. 

https://www.pdfdrive.com/

2.

https://101ml.fi/

ZLibrary

这个也不错, 找到了我想找的<<Sell The Way You Buy>> A Modern Approach To Sales That Actually Works (Even On You!)

#SellTheWayYouBuy #ZLibrary

3.

https://pdfcoffee.com/

PDF Coffee

使用谷歌高级搜索命令 “The Secret of Selling anything” site:pdfcoffee.com 来找你想要的资料, 会更高效一些.