- Modern Counterfeits and Replicas of Ancient Greek and Roman coins from Bulgaria (I)
- Autor: Ilya Prokopov, Kostadin Kissyov, Eugeni Paunov
Editorial: Popeto Publ. Ltd. Sofía, 2003 ISBN: 954-91396-1-1
- Contemporary Coin Engravers and Coin Masters from Bulgaria (II)
- Autor: Ilya Prokopov
Editorial: Popeto Publ. Ltd. Sofía, 2004 ISBN: 954-91396-3-8
- Cast Forgeries of Classical Coins from Bulgaria (III)
- Autor: Ilya Prokopov, Eugeni Paunov
Editorial: Popeto Publ. Ltd. Sofía, 2004 ISBN: 954-91396-4-6
- Counterfeit Studios and Their Coins (IV)
- Autor: Ilya Prokopov, Rumen Manov
Editorial: Popeto Publ. Ltd. Sofía, 2005 ISBN: 954-91396-6-2
- Coin Forgeries and Replicas
- Autor: Ilya Prokopov
Editorial: ProVias Publ. Ltd. Sofía, 2007 ISBN: 978-954-92000-1-0
- Classical Deception: Counterfeits, Forgeries and Reproductions of Ancient Coins
- Autor: Wayne G. Sayles
Editorial: Krause Publications. Iola (Wisconsin) 2001 ISBN: 0-87341-968-5
- Numismatic Forgery
- Autor: Charles M. Larson
Editorial: Zyrus Press. Irvine (California) 2004 ISBN: 0-9742371-2-4
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