Observadores

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  Annett Goodchap

  https://totoby.com/%ec%8a%a4%ed%8f%ac%ec%b8%a0%ed%86%a0%ed%86%a0%ec%99%80-%ec%9d%b8%ec%96%b4%eb%b2%a0%ea%b0%80%ec%8a%a4%eb%a5%bc-%ed%86%b5%ed%95%9c-%ec%95%88%ec%a0%84%ed%95%9c-%eb%a8%b9%ed%8a%80%ea%b2%80%ec%a6%9d/