(Inggris)"Astrocytes: biology and pathology". Department of Neurobiology, David Geffen School of Medicine, University of California, Division of Neuropathology, Department of Pathology and Laboratory Medicine, Department of Neurology, David Geffen School of Medicine, University of California; Michael V. Sofroniew dan Harry V. Vinters. Diakses tanggal 30 Juli 2011.
