古代ローマの通貨
↑ Buying Power of Roman Coins Archived 2013年2月10日, at the Wayback Machine.
↑ Sutherland, C. H. V. Roman Coins. New York: G. P. p254
↑ Roman Economy - Prices in Ancient Rome Ancientcoins.biz
↑ W.G. Sayles, Ancient Coin Collecting III: The Roman World-Politics and Propaganda, Iola, 1997, p. 20.
↑ Edict on Maximum Pricesを参照