https://cris.unu.edu/sites/cris.unu.edu/files/webform/thirty-3-ways-to-reach-a-human-at-alaska-airlines-via-email-call-or-chat.pdf
https://cris.unu.edu/sites/cris.unu.edu/files/webform/20-ways-to-reach-alaska-airlines-customer-care-and-speak-to-a-live-agent-via-phone-chat-or-email.pdf
https://cris.unu.edu/sites/cris.unu.edu/files/webform/twenty-six-ways-to-call-and-talk-to-a-human-at-jetblue-airlines-customer-help-center.pdf
https://www.hipertrofia.org/forum/topic/267536-25-canales-para-comunicarte-con-un-representante-en-vivo-de-westjet-airlines/
https://speakerdeck.com/dexterjacob2/jetblue-airlines-usa-25-quick-tips-to-talk-to-a-customer-service-agent
https://www.wikitree.com/wiki/Space:%C2%B9%E2%81%B5_Ways_To_Reach_a_A_Live_Human_At_American%E2%84%A2%EF%B8%8FAirline_Customer_Service_FAQ%CA%82QuickFireSolution%C2%AE%EF%B8%8F
https://cris.unu.edu/sites/cris.unu.edu/files/webform/one-ways-to-connect-to-live-agent-at-american-airlines-through-contact-options-a-complete-step-by-step-guide.pdf
