See:

• Reisner, George A., The Early Dynastic Cemeteries of Naga-ed-Dêr, Part I. University of California Publications in Egyptian Archaeology 2. Leipzig: J. C. Hinrichs, 1908 (OEB 148161) [https://ia800200.us.archive.org/14/items/earlydynasticcem01hearuoft/earlydynasticcem01hearuoft.pdf (accessed 13/07/2020)].
• Mace, Arthur C., The Early Dynastic Cemeteries of Naga-ed-Dêr, Part II. University of California Publications in Egyptian Archaeology 3. Leipzig: J. C. Hinrichs, 1909 (OEB 260027).
• Reisner, George A., A Provincial Cemetery of the Pyramid Age: Naga-ed-Dêr, Part III. University of California Publications in Egyptian Archaeology 6. Oxford; Berkeley, CA: Oxford University Press; University of California Press, 1932 (OEB 148190).