(Inggris)"Warfarin Pharmacogenetics". Department of Neurology, University of Alabama at Birmingham, Department of Pharmaceutical Outcomes Research and Policy Program and Institute for Public Health Genetics, University of Washington; NA Limdi dan DL Veenstra. Diakses tanggal 2011-08-22.
(Inggris)"Warfarin reversal". Department of Haematology, Royal Victoria Infirmary; J P Hanley. Diakses tanggal 2011-08-23.
(Inggris)"Glucuronidation of Monohydroxylated Warfarin Metabolites by Human Liver Microsomes and Human Recombinant UDP-Glucuronosyltransferases". Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Arkansas Public Health Laboratory, Arkansas Department of Health, Drug Discovery and Development Technology Center, Faculty of Pharmacy, University of Helsinki, Arkansas Public Health Laboratory, Arkansas Department of Health; Agnieszka Zielinska, Cheryl F. Lichti, Stacie Bratton, Neil C. Mitchell, Anna Gallus-Zawada, Vi-Huyen Le, Moshe Finel, Grover P. Miller, Anna Radominska-Pandya, and Jeffery H. Moran. Diakses tanggal 2011-08-23.
(Inggris)"Human P450 metabolism of warfarin". New York State Department of Health, Wadsworth Center; Kaminsky LS, Zhang ZY. Diakses tanggal 2011-08-22.