https://khepa9872.medium.com/socio-economic-impact-of-the-covid-19-pandemic-in-u-k-d4b91c169801
https://www.onfeetnation.com/profiles/blogs/tourism-is-considered-one-of-the-hardest-hits-by-the-covid-19
https://www.mychemicalromance.com/news/socio-economic-impact-covid-19-pandemic-angola-3702961
https://myanimelist.net/blog.php?eid=845916