Observadores

• 

  Emely Ortega

  https://qouracu.com/%ED%86%A0%ED%86%A0%EC%82%AC%EC%9D%B4%ED%8A%B8-%EC%95%88%EC%A0%84%ED%95%98%EA%B3%A0-%EC%8B%A0%EB%A2%B0%ED%95%A0-%EC%88%98-%EC%9E%88%EB%8A%94-%EC%98%A8%EB%9D%BC%EC%9D%B8-%EB%B2%A0%ED%8C%85%EC%9D%98/