https://www.goodreads.com/quotes/13617156-cheap-alaska-tickets-what-is-the-cheapest-day-to-book

https://www.cucei.udg.mx/carreras/fisica/sites/default/files/webform/expedia_flight_rebook_how_do_i_communicate_to_expedia_3.pdf

https://frontiers.csls.ox.ac.uk/wp-content/uploads/formidable/1/Lucas.pdf

Complete List of Expedia ® USA Customer Service" Contact Numbers – The Detailed Gu

https://tl.net/forum/starcraft-2/641291-full-list-of-expedi%F0%9D%93%AA-customer-service-number

https://mlpforums.com/topic/205949-quick-talk-to-someone-at-expedia%C2%AEa-full-step-by-step-assistance-guide%E2%84%A2/

https://community.retool.com/t/full-list-of-orbitz-customer-contact-numbers-in-usa-a-complete-guide/61283

https://www.cucei.udg.mx/maestrias/biotecnologia/sites/default/files/webform/expedia_dispute_helphow_to_make_a_complaint_against_expedia8.pdf

https://www.cucei.udg.mx/carreras/fisica/sites/default/files/webform/expedia_trip_cancel_how_do_i_communicate_to_expedia_3.pdf

https://www.cucei.udg.mx/carreras/fisica/sites/default/files/webform/expedia_charge_issue_how_to_make_a_complaint_against_expedia_expedia_phone2.pdf