BUSTOS DÍAZ, Javier; RUIZ DEL OLMO, Francisco Javier. Sources certified to the Fake News.The case of Facebook, Google and Microsoft against disinformation during Covid-19. Journal of Learning Styles, [S. l.], v. 13, n. 26, p. 7–18, 2020. DOI: 10.55777/rea.v13i26.2158. Disponível em: https://revistaestilosdeaprendizaje.com/estilosdeaprendizaje/article/view/2158. Acesso em: 28 jul. 2026.