1. Bellingcat - the home of online investigations: about page. https://www.bellingcat.com/about/. Accessed 23 Apr 2022
2. Bellingcat: workflow page. https://yemen.bellingcat.com/methodology/workflow. Accessed 20 May 2022
3. Human rights center about us page. https://humanrights.berkeley.edu/about/about-us. Accessed 22 June 2022
4. Sinwindie: Github - sinwindie/osint: Collections of tools and methods created to aid in osint collection. https://github.com/sinwindie/OSINT. Accessed 16 Sept 2017
5. National doctrine on intelligence activity - doctrinal foundations (2016). https://www.gov.br/abin/pt-br/centrais-de-conteudo/publicacoes/Legislao3V5.pdf. “Portaria n.o 244-ABIN/GSI/PR”, Coletânea de Legislação