Graham, Lloyd D. «Iconographic Similarities Between Permian “Goddess Plaques” (Ural Region, 7-8th Centuries CE) and Horus Cippi (Egypt, 8th Century BCE - 2nd Century CE)». Eikón / Imago 9 (julho 3, 2020): 419–451. Acedido julho 10, 2026. https://revistas.ucm.es/index.php/EIKO/article/view/73338.