Healthline. https://www.healthline.com/health/posterior-nosebleed#treatment
Diakses pada 27 Mei 2019Medical News Today. https://www.medicalnewstoday.com/articles/164823.php
Diakses pada 27 Mei 2019WebMD. https://www.webmd.com/first-aid/causes-nosebleeds
Diakses pada 18 November 2020