https://collaboratory.gse.upenn.edu/sites/default/files/webform/%C2%BFcomo-hablar-con-un-representante-de-delta-en-espanol.pdf

https://collaboratory.gse.upenn.edu/sites/default/files/webform/top-09-smart-methods-to-reach-quickbooks%C2%AE-desktop-support-astep-by-step-support.pdf

https://intercom.help/agregar-infante/en/articles/11716583-es-posible-anadir-un-bebe-a-una-reserva-de-vuelo-existente-de-qantas-airlines

https://pantip.com/topic/43606563

Ｎｉｎｅ　Ｅａｓｙ　Ｗａｙｓ　ｔｏ　Ｃｏｎｔａｃｔ　Ｅｘｐｅｄｉａ　ＵＳＡ　Ｃｏｎｔａｃｔ　Ｎｕｍｂｅｒｓ：　Ａ　Ｃｏｍｐｌｅｔｅ　Ｇｕｉｄｅ

https://intercom.help/agregar-infante/en/articles/11716577-pasos-para-agregar-un-bebe-a-su-vuelo-de-etihad-airlines-ya-reservado

https://intercom.help/agregar-infante/en/articles/11716568-puedo-anadir-un-bebe-a-un-vuelo-de-klm-airlines-ya-reservado-esto-es-lo-que-necesita-saber

https://pressbooks.pub/namecorrection/chapter/how-to-reach-at-united-airlines-live-customer-support-via-call-email-and-chat/

https://collaboratory.gse.upenn.edu/sites/default/files/webform/seventy-7-direct-ways-to-speak-to-live-agent-at-united-airlines-full-step-by-step-guide.pdf

https://intercom.help/agregar-infante/en/articles/11716567-todo-lo-que-necesita-saber-sobre-como-llevar-un-bebe-en-la-clase-economica-de-klm-airlines