https://riversideca.gov/sites/default/files/webform/musueum/covid/%C2%BFC%C3%B3mo-puedo-comunicarme-con-Latam-Airlines.pdf
https://spp.umd.edu/sites/default/files/webform/rawlings_undergraduate_leadershi/_sid_/17-seventeen-authentic-methods-to-contact-united-airlines-full-help-list.pdf
https://writers.coverfly.com/projects/view/88d2f18f-a3ed-4f78-a380-b59d8538da8f/How_to_get_Lufthansa_to_respond