(Inggeris)Bruce Alberts, Alexander Johnson, Julian Lewis, Martin Raff, Keith Roberts, Peter Walter (2008). Molecular Biology of the cell. Garland Science. m/s. 219. ISBN 978-0-8153-4106-2. Dicapai pada 2010-03-31.CS1 maint: multiple names: authors list (link)
(Inggeris)C. David Allis, Thomas Jenuwein, Danny Reinberg, Marie-Laure Caparros (2007). Epigenetics. New York: Cold Spring Harbor Laboratory Press. m/s. 26-27. ISBN-13: 978-0-87969-724-2.CS1 maint: multiple names: authors list (link)
