Primary Sources on the Triumph

[SOCL]

Check Zonaras, Epitome 7.21. It gives a detailed account of what a triumph is and how it is held, though this is much later, namely late 11th/early 12th Century. I'll post a full transcript of the bit here when I get a chance (it's rather lengthy), but it's a primary source I wouldn't pass up. You can find it in:

• Shelton, Jo-Ann. As the Romans Did, 2nd ed. Oxford U Press: New York, 1998. p. 251-52. (ISBN 019508974X)