Спостерігачі

• 

  Sherrie Esters

  https://bitcoin-review.net/%eb%a1%9c%eb%98%90%eb%8b%b9%ec%b2%a8%ec%9d%98-%ea%bf%88-%eb%a1%9c%eb%98%90%eb%8b%b9%ec%b2%a8%ea%b8%88%ea%b3%84%ec%82%b0%ea%b8%b0%eb%a1%9c-%ed%98%84%ec%8b%a4%eb%a1%9c/