Krause, Chester L. and Clifford Mishler (2003). 2004 Standard Catalog of World Coins: 1901–Present. Colin R. Bruce II (senior editor) (31st ed. ed.). Krause Publications. ISBN 0873495934.
Cuhaj, George S. (editor) (2005). Standard Catalog of World Paper Money: Modern Issues 1961-Date (11th ed.). Krause Publications. ISBN 0-89689-160-7.
Pick, Albert (1996). Standard Catalog of World Paper Money: General Issues to 1960. Colin R. Bruce II and Neil Shafer (editors) (8th ed.). Krause Publications. ISBN 0-87341-469-1.
