“ꜥr.t (lemma ID 39240)”, “ꜥr.t (lemma ID 39230)”, “ꜥr.t (lemma ID 39250)”, and “ꜥr.t (lemma ID 39210)”, in Thesaurus Linguae Aegyptiae[1], Corpus issue 18, Web app version 2.1.5, Tonio Sebastian Richter & Daniel A. Werning by order of the Berlin-Brandenburgische Akademie der Wissenschaften and Hans-Werner Fischer-Elfert & Peter Dils by order of the Sächsische Akademie der Wissenschaften zu Leipzig, 2004–26 July 2023
James P[eter] Allen (2010) Middle Egyptian: An Introduction to the Language and Culture of Hieroglyphs, 2nd edition, Cambridge: Cambridge University Press, →ISBN, page 236.
Junge, Friedrich (2005) Late Egyptian Grammar: An Introduction, second English edition, Oxford: Griffith Institute, page 25