The central bank prints them. It's our currency, after all. :)
You don't. That's why most Hungarian live outside of the country. It's nearly impossible to earn a living there.
Farming
what are the club's main source of income
what is the income of Indiana
Personal income tax
what is the main source of income in israel
bacon
Cattle
refineries
Oil
Balls
Welfare.
Banking, casinos and the service industry ( restaurants, stores etc) are the main sources of income.
The main source is tourism.