Brovarski, E. (2018), Naga ed-Dêr in the First Intermediate Period., p. 143-144, comment standing soldier signs in Middle Egypt during the FIP
Callender, Vivienne Gae (2019), El-Hawawish: tombs, sarcophagi, stelae. Palaeography. Paléographie hiéroglyphique 8., p. 19, §28
Brovarski, E. (1981), Ahanakht of Bersheh and the Hare nome in the First Intermediate Period and Middle Kingdom. In Simpson, William Kelly and Whitney M. Davis (eds), Studies in ancient Egypt, the Aegean, and the Sudan: essays in honor of Dows Dunham on the occasion of his 90th birthday, June 1, 1980, 14-30, p. 28, comment standing soldier signs in Middle Egypt during the FIP