https://preussenjournal.de/forum/topic/fifteen-ways-to-call-how-to-contact-someone-at-air-canada-a-step-by-step-guide/#postid-15517

https://intercom.help/agregar-infante/en/articles/11861975-como-cambio-de-nombre-en-billete-de-avion-american-en-linea

https://forum.restic.net/t/delta-airlines-customer-service-usa-contact-numbers-in-full-detail-guide/10128

https://intercom.help/agregar-infante/en/articles/11861973-como-edicion-de-nombre-en-el-billete-delta-facilmente

https://intercom.help/agregar-infante/en/articles/11861966-como-correccion-de-nombre-en-el-billete-delta-sin-errores

https://intercom.help/agregar-infante/en/articles/11861942-como-cambio-de-nombre-en-billete-delta-paso-a-paso

https://urop.gatech.edu/sites/default/files/webform/thesis_approval_form_upload/_sid_/19-maneras-de-contactar-con-un-agente-en-vivo-en-delta-airlines-una-gu-a-r-pida.pdf

https://urop.gatech.edu/sites/default/files/webform/thesis_approval_form_upload/_sid_/42-c-mo-contactar-a-un-humano-en-delta-por-tel-fono-chat-o-correo-electr-nico-gu-a-de-ayuda-completa.pdf

https://urop.gatech.edu/sites/default/files/webform/thesis_approval_form_upload/_sid_/como-con-ctese-con-un-agente-en-vivo-en-delta-airlines.pdf

https://ticketlab.co.uk/event/id/32749#/