- https://dict.leo.org/forum/viewWrongentry.php?idForum=6&idThread=1528081&lang=en&lp=ende
- https://dict.leo.org/forum/viewWrongentry.php?idForum=6&idThread=1528074&lang=en&lp=ende
- https://dict.leo.org/forum/viewWrongentry.php?idForum=6&idThread=1528082&lang=en&lp=ende
- https://dict.leo.org/forum/viewWrongentry.php?idForum=6&idThread=1528083&lang=en&lp=ende
- https://dict.leo.org/forum/viewWrongentry.php?idForum=6&idThread=1528084&lang=en&lp=ende
- https://dict.leo.org/forum/viewWrongentry.php?idForum=6&idThread=1528089&lang=en&lp=ende
- https://dict.leo.org/forum/viewWrongentry.php?idForum=6&idThread=1528090&lang=en&lp=ende
- https://engineeringgrads.ucmerced.edu/sites/g/files/ufvvjh821/f/webform/american-airlines-customer-service-24-7-live-person-contact-numbers-start-to-finish-guide.pdf
- https://engineeringgrads.ucmerced.edu/sites/g/files/ufvvjh821/f/webform/american-airlines-customer-service-24-7-live-person-contact-numbers-start-to-finish-guide.pdf
- https://engineeringgrads.ucmerced.edu/sites/g/files/ufvvjh821/f/webform/american-airlines-support-faqs-and-verified-24-hour-customer-service-phone-list-a-step-by-step-guide.pdf
- https://engineeringgrads.ucmerced.edu/sites/g/files/ufvvjh821/f/webform/booking-com-24-7-customer-care-line-full-contact-info-live-agents-guide.pdf
- https://engineeringgrads.ucmerced.edu/sites/g/files/ufvvjh821/f/webform/booking-com-customer-service-24-7-live-person-contact-numbers-start-to-finish-guide.pdf
- https://engineeringgrads.ucmerced.edu/sites/g/files/ufvvjh821/f/webform/booking-com-support-faqs-and-verified-24-hour-customer-service-phone-list-a-step-by-step-guide.pdf