Roth, Ann Macy (1993). "Social Change in the Fourth Dynasty: The Spatial Organization of Pyramids, Tombs, and Cemeteries". Journal of the American Research Center in Egypt. 30: 33–55. doi:10.2307/40000226. JSTOR40000226.
jstor.org
Roth, Ann Macy (1993). "Social Change in the Fourth Dynasty: The Spatial Organization of Pyramids, Tombs, and Cemeteries". Journal of the American Research Center in Egypt. 30: 33–55. doi:10.2307/40000226. JSTOR40000226.