Ilustrasi umum tentang cara kerja block chain.
https://www.geeksforgeeks.org/data-structures/linked-list/, diakses pada 14 Desember 2019
https://hackernoon.com/learn-blockchains-by-building-one-117428612f46, diakses pada 14 Desember 2019
Joshi, Archana & Han, Meng & Wang, Yan. (2018). A survey on security and privacy issues of blockchain technology. Mathematical Foundations of Computing. 1. 121-147. 10.3934/mfc.2018007