↑ Flinders Petrie: Scarabs and cylinders with names, illustrated by the Egyptian collection in University College, London by W. M. Flinders Petrie, British school of archaeology in Egypt and Egyptian research account, London 1917, available online copyright-free see pl. xxii, num 16.h.1
↑ Percy E. Newberry: Scarabs an introduction to the study of Egyptian seals and signet rings, with forty-four plates and one hundred and sixteen illustrations in the text, 1906, available online copyright-free see plate XXII, num 8, p. 151.
