Creation and distribution of money from scratch in a country (USA as example)
The way in which colonial governments forced indigenous tribes to use money was to impose a tax that had to be paid in money. For a textual reference, this is described in “Understanding Modern Money: A Key to Full Employment and Price Stability” by L. Randall Wray. (This concept is discussed quite often in Modern Monetary Theory, and articles are probably easily found using a web search.)

The way the locals could get money is via providing labour at a fixed wage (or goods at a fixed price). They could trade amongst themselves to allow those with a surplus of money to distribute it to those who did not get money this way. This has the effect of forcing monetary transactions into the economy.

As was typical for colonial powers, policing was brutal to ensure that the taxes would be obeyed.