https://www.freedomunited.org/advocate/qatar-kafala/
https://www.amnesty.org/en/latest/campaigns/2019/02/reality-check-migrant-workers-rights-with-two-years-to-qatar-2022-world-cup/
https://www.amnesty.org/en/latest/campaigns/2019/02/reality-check-migrant-workers-rights-with-two-years-to-qatar-2022-world-cup/