Healthline. https://www.healthline.com/health/cholangitis#outlook
Diakses 12 Februari 2020Johns Hopkins Medicine. https://www.hopkinsmedicine.org/health/conditions-and-diseases/cholangitis
Diakses 12 Februari 2020Medline Plus. https://medlineplus.gov/ency/article/000290.htm
Diakses 12 Februari 2020