https://support.google.com/edu/classroom/thread/335199557?hl=en&sjid=11445308492238211481-NA

https://forum.dimensionengineering.com/topic/22077-ways-to-instantly-call-expedia-customer-service-via-phone-email-and-chat-a-complete-breakdown-guide/

https://forum.dimensionengineering.com/topic/22042-here%E2%80%99s-how-to-contact-american-airline-for-fast-friendly-help/

https://forum.dimensionengineering.com/topic/22049-contacting-way-to-american-airlines-has-never-been-easier-%E2%80%94-heres-how/

https://www.gurux.fi/node/28922

https://support.google.com/admanager/thread/336522073?hl=en&sjid=2757513743159541663-NC

https://support.google.com/admanager/thread/336521969?hl=en&sjid=2757513743159541663-NC

https://forum.dimensionengineering.com/topic/22054-need-help-ways-to-reach-expedia-customer-service-via-phone-number-email-support-live-chat-with-agent-a-complete-guide/

https://www.gurux.fi/node/28917

https://forum.dimensionengineering.com/topic/22047-10-effective-ways-to-contact-expedia-customer-service-a-full-comprehensive-guide/