https://en.wikipedia.org/wiki/Bitcoin

https://bitcoin.org/en/

Bitcoin

https://blog.bitcoin.co.id/apa-itu-bitcoin/

http://www.bambanghariyanto.com/2013/10/perbedaan-dari-ekonomi-mikro-dan.html

Ringkasan Ekonomi Mikro dan Makro

http://www.markijar.com/2017/07/ekonomi-makro-dan-mikro-lengkap.html

Principle of MIcro Economics

Perpetual & Periodic Inventory

Accrual & Defferal

Accounting Worksheet

Accounting Equation

Accounting Concepts