Спостерігачі

• 

  Bell Foreman

  https://grockii.com/%ec%95%88%ec%a0%84%ed%95%9c-%eb%8f%84%eb%b0%95%ec%82%ac%ec%9d%b4%ed%8a%b8%eb%a5%bc-%ec%9c%84%ed%95%9c-%eb%af%bf%ec%9d%84-%ec%88%98-%ec%9e%88%eb%8a%94-%eb%a8%b9%ed%8a%80%ea%b2%80%ec%a6%9d-%ed%94%8c/