↑ Sallust. “The Jugurthine War”. p.6. (ed. John Selby Watson), Tufts Perseus Digital Library.
↑ Plutarch. [Lives of] Tiberius and Gaius Gracchus, c. 39. In: Waterfield, Robin. Plutarch, Roman Lives, pp. 114, 458 (note to p. 114) ISBN 978-0-19-282502-5
