https://nch.invisionzone.com/topic/87424-101-ways-to-connect-to-live-agent-at-frontier-airlines-customer-service-via-call-chat-email/

https://pressbooks.pub/namecorrection/chapter/17-ways-to-speak-with-a-live-agent-at-united-airlines-via-call-email-and-chat-a-complete-guide/

https://sites.google.com/view/klmhelp/home

https://pressbooks.pub/namecorrection/chapter/11-ways-to-speak-to-a-human-at-united-airlines-via-call-email-and-chat-updated/

https://intercom.help/agregar-infante/en/articles/11716582-viajar-con-un-recien-nacido-en-la-clase-turista-de-etihad-airlines-guia-rapida

https://intercom.help/agregar-infante/en/articles/11716592-viajar-con-un-recien-nacido-en-la-clase-turista-de-qantas-airlines-guia-rapida

https://collaboratory.gse.upenn.edu/sites/default/files/webform/%C2%BFcomo-hablo-con-un-agente-de-expedia.pdf

https://sites.google.com/view/mexicoklm/home

https://pressbooks.pub/namecorrection/chapter/20-ways-to-talk-to-a-real-person-at-united-airlines-via-call-email-and-chat/

https://www.laundromatresource.com/forums/topic/22-ways-to-talk-to-qatar-airways-support-a-complete-guide/