Harry Reginald Hall: Catalogue of Egyptian scarabs, etc., in the British museum, 1913, n. 208 p. 50, available online copyright free
unz.org
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, A. Constable and Co., ltd. in London, 1906, available online, p. 124, pl. X, num. 28.
