Fontaine, Carole R. (1981). „A Modern Look at Ancient Wisdom: The Instruction of Ptahhotep Revisited”. The Biblical Archaeologist. 44 (3): 155—160. JSTOR3209606. S2CID59261427. doi:10.2307/3209606.
Fontaine, Carole (1981). „A Modern Look at Ancient Wisdom: The Instruction of Ptahhotep Revisited”. Biblical Archaeologist. 44 (3): 155—160. JSTOR3209606. S2CID59261427. doi:10.2307/3209606.
Fontaine, Carole R. (1981). „A Modern Look at Ancient Wisdom: The Instruction of Ptahhotep Revisited”. The Biblical Archaeologist. 44 (3): 155—160. JSTOR3209606. S2CID59261427. doi:10.2307/3209606.
Fontaine, Carole (1981). „A Modern Look at Ancient Wisdom: The Instruction of Ptahhotep Revisited”. Biblical Archaeologist. 44 (3): 155—160. JSTOR3209606. S2CID59261427. doi:10.2307/3209606.
Fontaine, Carole R. (1981). „A Modern Look at Ancient Wisdom: The Instruction of Ptahhotep Revisited”. The Biblical Archaeologist. 44 (3): 155—160. JSTOR3209606. S2CID59261427. doi:10.2307/3209606.
Fontaine, Carole (1981). „A Modern Look at Ancient Wisdom: The Instruction of Ptahhotep Revisited”. Biblical Archaeologist. 44 (3): 155—160. JSTOR3209606. S2CID59261427. doi:10.2307/3209606.
Mariette, Auguste; Maspero, Gaston (1889). Les mastabas de l'Ancien Empire: Fragment du dernier ouvrage de A. Mariette, publié d'après le manuscrit de l'auteur. Paris. OCLC46226552.