https://static.europeanchamber.com.cn/upload/documents/documents/The_Digital_Hand_How_China_s_Corporate_Social_Credit_System_Conditons_Market_Actors[709].pdf
https://blogs.imf.org/2019/12/17/new-data-on-world-debt-a-dive-into-country-numbers/?utm_medium=email&utm_source=govdelivery
https://fam.state.gov/fam/11fam/11fam0720.html