מפתח התקציב

http://www.blacklabor.org/?p=55722

https://www.hasadna.org.il/%D7%9E%D7%A4%D7%AA%D7%97-%D7%94%D7%AA%D7%A7%D7%A6%D7%99%D7%91/

https://github.com/OpenBudget/BudgetKey