Healthline. https://www.healthline.com/health/earache
Diakses pada 28 September 2020WebMD. https://www.webmd.com/cold-and-flu/ear-infection/why-does-ear-hurt#1
Diakses pada 28 September 2020Everyday Health. https://www.everydayhealth.com/ear-pain/guide/
Diakses pada 28 September 2020