إبراهيم أبو العافية: الفرق بين النسختين

* [http://www.jewishencyclopedia.com/view.jsp?artid=699&letter=A JewishEncyclopedia.com article]

* [http://www.geocities.com/avisolo3/ABULAFIA.pdf Portrait of Abulafia] (PDF file)

* [http://www.ubu.com/ethno/visuals/jewish04.html "Circles"] - from Life of the World to Come