Observadores

• 

  Maritza Seifert

  https://medium.com/@casino79com/%EB%A1%9C%EB%B8%94%EB%A1%9D%EC%8A%A4%EB%A5%BC-%EC%9D%B4%EC%9A%A9%ED%95%9C-%EB%B6%88%EB%B2%95-%EC%B9%B4%EC%A7%80%EB%85%B8%EC%82%AC%EC%9D%B4%ED%8A%B8-%ED%99%9C%EA%B0%9C-098284366e8f