Billing, Nils (2002): . Department of Archaeology and Ancient History, Uppsala universitet. ISBN 91-506-1653-6. Billing, Nils (2004): «Writing an Image—The Formulation of the Tree Goddess Motif in the Book of the Dead, Ch. 59». . . JSTOR 25152905. Budge, E.A. Wallis (2007): . NuVision Publications. s. 57. Collier, Mark; Manley, Bill (1998): . Berkeley: University of California Press. Leeming, David (2004): . Oxford University Press. Lesko, Barbara S. (1999): . University of Oklahoma Press. ISBN 0-8061-3202-7. Lesko, Leonard H. (2001): . Hollis, Susan Tower (1987): . Roberts, Alison (2000): . NorthGate Publishers. ISBN 0-9524233-1-6. Willems, Harco (1988): , Ex Oriente Lux, s. 131–144, 165, 168, 174, 194–196, 243.