"Trajan was, in fact, quite active in Egypt. Separate scenes of Domitian and Trajan making offerings to the gods appear on reliefs on the propylon of the Temple of Hathor at Dendera. There are cartouches of Domitian and Trajan on the column shafts of the Temple of Knum at Esna, and on the exterior a frieze text mentions Domitian, Trajan, and Hadrian" Stadter, Philip A.; Stockt, L. Van der (2002). Sage and Emperor: Plutarch, Greek Intellectuals, and Roman Power in the Time of Trajan (98-117 A.D.). Leuven University Press. p. 75. ISBN978-90-5867-239-1.
Kaper, Olaf E. (2010), "9. Galba's Cartouches at Ain Birbiyeh", in Lembke, Katja; Minas-Nerpel, Martina; Pfeiffer, Stefan (eds.), Tradition and Transformation. Egypt under Roman Rule. Proceedings of the International Conference, Hildesheim, Roemer- and Pelizaeus-Museum, 3–6 July 2008, BRILL, pp. 181–201, doi:10.1163/ej.9789004183353.i-508.38, ISBN978-90-04-18335-3, retrieved 2021-02-11
Alston, Richard (1997). "Philo's In Flaccum: Ethnicity and Social Space in Roman Alexandria". Greece and Rome. Second Series. 44 (2): 165–175 [p. 166]. doi:10.1093/gr/44.2.165. S2CID163149248.
Kaper, Olaf E. (2010), "9. Galba's Cartouches at Ain Birbiyeh", in Lembke, Katja; Minas-Nerpel, Martina; Pfeiffer, Stefan (eds.), Tradition and Transformation. Egypt under Roman Rule. Proceedings of the International Conference, Hildesheim, Roemer- and Pelizaeus-Museum, 3–6 July 2008, BRILL, pp. 181–201, doi:10.1163/ej.9789004183353.i-508.38, ISBN978-90-04-18335-3, retrieved 2021-02-11
Alston, Richard (1997). "Philo's In Flaccum: Ethnicity and Social Space in Roman Alexandria". Greece and Rome. Second Series. 44 (2): 165–175 [p. 166]. doi:10.1093/gr/44.2.165. S2CID163149248.