How the coins must be paid miners for mining process is provided? One of resources may be transactions fee. Is there any other resources for proving reward of miners?
Miners receive a block subsidy and any transaction fees in the block.
The subsidy started at 50BTC and halves every 210,000 blocks. See Mining Reward. These are newly minted coins the network accepts as valid coins based on consensus rules above.
I think you can get a good idea about mining by watching this video https://www.youtube.com/watch?v=xUud-Pz8fE4&t=7s also for pow https://www.youtube.com/watch?v=9-W3uM2u_24&t=200s