William C. Hayes: The Scepter of Egypt: A Background for the Study of the Egyptian Antiquities in The Metropolitan Museum of Art. Vol. 1, From the Earliest Times to the End of the Middle Kingdom, p. 134, available online
reshafim.org.il
Coptos decree R, translation available onlineArchived 2018-07-26 at the Wayback Machine, after M. A. Moret: "Chartes d'immunité dans l'Ancien Empire égyptien", in Journal Asiatique, 1917 (Sér. 11/T.10), Paris
Coptos decree R, translation available onlineArchived 2018-07-26 at the Wayback Machine, after M. A. Moret: "Chartes d'immunité dans l'Ancien Empire égyptien", in Journal Asiatique, 1917 (Sér. 11/T.10), Paris