Observerare

• 

  Debra Tomlinson

  https://norimap.com/%ec%8a%a4%ed%94%bc%eb%93%9c%ed%82%a4%eb%85%b8-%eb%b6%84%ec%84%9d%ea%b3%bc-%eb%b2%a0%ed%94%bd-%ec%bb%a4%eb%ae%a4%eb%8b%88%ed%8b%b0-%ed%95%a8%ea%bb%98-%ec%84%b1%ec%9e%a5%ed%95%98%eb%8a%94-%eb%b6%84/