Healthline. https://www.healthline.com/health/digestive-health/how-to-fart
Diakses pada 6 Desember 2020Medical News Today. https://www.medicalnewstoday.com/articles/321866#why-do-we-fart
Diakses pada 6 Desember 2020Everyday Health. https://www.everydayhealth.com/digestive-health-pictures/lets-hope-its-just-gas.aspx
Diakses pada 6 Desember 2020