Pliny, Epistulae, 6.19. Pliny (1900). Epistulae. Translated by Firth, J. B. Archived from the original on 2025-02-07. Retrieved 2025-02-04– via Attalus.org.
Eck 2000, pp.215–16. Eck, Werner (2000). "Emperor, senate, and magistrates". In Bowman, Alan K; Garnsey, Peter; Rathbone, Dominic (eds.). The high empire, AD 70–192. Cambridge Ancient History. Vol.11 (2nded.). Cambridge University Press. pp.214–37. ISBN0-521-26335-2.
Festus, opima spolia. Festus (1933). Lindsay, Wallace M. (ed.). De verborum significatu. Bibliotheca scriptorum Graecorum et Romanorum Teubneriana (2nded.). Tuebner.
Pliny, Epistulae, 6.19. Pliny (1900). Epistulae. Translated by Firth, J. B. Archived from the original on 2025-02-07. Retrieved 2025-02-04– via Attalus.org.