| https://www.viainfo.net/wp-content/uploads/formidable/40/jetbluechange.pdf |
| https://intelligencestudies.utexas.edu/wp-content/uploads/ninja-forms/3/jetblue-booking.pdf |
| https://intelligencestudies.utexas.edu/wp-content/uploads/ninja-forms/3/jetbluechange.pdf |
| https://intelligencestudies.utexas.edu/wp-content/uploads/ninja-forms/3/alaska.pdf |
| https://intelligencestudies.utexas.edu/wp-content/uploads/ninja-forms/3/jetblueflight.pdf |
