Healthline. https://www.healthline.com/health/liver-failure-stages
Diakses pada Mei 2019Cleveland Clinic. https://my.clevelandclinic.org/health/diseases/17819-liver-failure/diagnosis-and-tests
Diakses pada Mei 2019American Liver Foundation. https://liverfoundation.org/for-patients/about-the-liver/the-progression-of-liver-disease/
Diakses pada Mei 2019