Sel oval Rujukan
โ (Inggris) "Hepatic stem cells: a review" . Department of Anatomical Pathology, University of Cape Town; Vessey CJ, de la Hall PM . Diakses tanggal 2010-10-23 .
โ (Inggris) "Pluripotential liver stem cells: facultative stem cells located in the biliary tree" . ent of Histopathology, Royal Postgraduate Medical School; Alison MR, Golding MH, Sarraf CE . Diakses tanggal 2010-10-23 .
โ (Inggris) "Primary isolated hepatic oval cells maintain progenitor cell phenotypes after two-year prolonged cultivation" . Liver Research Center, Beijing Friendship Hospital, Capital Medical University; Wang P, Cong M, Liu TH, Yang AT, Cong R, Wu P, Tang SZ, Xu Y, Wang H, Wang BE, Jia JD, You H . Diakses tanggal 2010-10-23 .