| https://www.higheredimmigrationportal.org/wp-content/uploads/formidable/13/comunico-con-united-airlines.pdf |
| https://www.higheredimmigrationportal.org/wp-content/uploads/formidable/13/como-llamar-a-copa-airlines-desde-el-salvador.pdf |
| https://www.higheredimmigrationportal.org/wp-content/uploads/formidable/13/rapidamente-con-un-representante-de-copa.pdf |
|
|
| https://12313.zohodesk.com/portal/en/kb/articles/a- |
| https://sites.google.com/view/avianca-sv/ |
| https://www.goodreads.com/quotes/14690207-el-n-mero-telefono-copa-airlines-el-salvador-503—2113—1768-sv |
| https://www.goodreads.com/quotes/14693549-c-mo-hablar-con-alguien-en-united-para-hablar-con |
| https://12313.zohodesk.com/portal/en/kb/articles/%C4%8Dop%C4%83-cu%C3%A1l-es-el-n%C3%BAmero-de-atenci%C3%B3n-al-cliente-de-copa-airlines-en-el-salvador |
| https://www.chiguu.com/articles/%C2%B6%C2%B6-%C3%BA%C5%84%C3%AD%C9%AB%C4%99%C4%91-%C5%A5el%C3%A9fono-%C2%B6%C2%B6-%C2%BFc%C3%B3mo-hablo-con-alguien-de-united |
| https://www.chiguu.com/articles/%E2%9F%A6%C2%AB-%C5%A7%C4%99%C4%BE%C4%9Bf%C5%8F%C5%88%C3%B2-%C3%A7%C5%8Fp%C3%A1-el-s%C4%83lv%C3%A4d%C5%8Fr-%C2%AB%E2%9F%A7-%C2%BFc%C3%B3mo-llamar-a-copa-airlines-desde-el-salvador |
| https://www.chiguu.com/articles/%C3%A2%C5%B7%C3%BB%C4%8F%C3%A0-%C3%A5v%C4%AF%C3%A1%C3%B1%C4%89%C3%A4-%C2%BFc%C3%B3mo-puedo-comunicarme-con-avianca-el-salvador |
