Ronald Hutton, Witches, Druids and King Arthur, 2006, p.116: "The most famous of these texts is the so-called Mithras liturgy...".
doi.org
Hanesworth, Pauline (2012-10-26), "Magical papyri, Greek", in Bagnall, Roger S; Brodersen, Kai; Champion, Craige B; Erskine, Andrew (eds.), The Encyclopedia of Ancient History, Hoboken, NJ, USA: John Wiley & Sons, Inc., pp. wbeah17179, doi:10.1002/9781444338386.wbeah17179, ISBN978-1-4443-3838-6, retrieved 2020-11-16
Hanesworth, Pauline (2012-10-26), "Magical papyri, Greek", in Bagnall, Roger S; Brodersen, Kai; Champion, Craige B; Erskine, Andrew (eds.), The Encyclopedia of Ancient History, Hoboken, NJ, USA: John Wiley & Sons, Inc., pp. wbeah17179, doi:10.1002/9781444338386.wbeah17179, ISBN978-1-4443-3838-6, retrieved 2020-11-16