- https://www.devex.com/people/i-a-como-hablar-con-un-agente-de-frontier-airlines-2365182
- https://www.devex.com/people/guia-completa-como-solicitar-asistencia-en-delta-2365010
- https://www.devex.com/people/guia-completa-como-hablar-con-alguien-de-delta-2364935
- https://www.devex.com/people/delta-servicio-al-cliente-como-puedo-llamar-a-delta-airlines-en-espanol-2364760
