1. Counterfeit. Accessed : 09/09/2022; Available on: 〈https://en.wikipedia.org/wiki/Counterfeit〉.
2. OECD The Economic Effect of Counterfeiting and Piracy. 2007. Available on: https://www.oecd.org/industry/ind/38707619.pdf.
3. OECD Magnitude of counterfeiting and piracy of tangible products – November 2009 update. 2009. Available on: https://www.oecd.org/industry/ind/44088872.pdf.
4. EUIPO Status Report on IPR Infringement - Why IP Rights are important, IPR infringement, and the fight against counterfeiting and piracy. 2020.Available on: https://euipo.europa.eu/tunnel-web/secure/webdav/guest/document_library/observatory/documents/reports/2021_Anti_Counterfeiting_Technology_Guide/2021_Anti_Counterfeiting_Technology_Guide_en.pdf.
5. The online trade in counterfeit pharmaceuticals: new criminal opportunities, trends and challenges;Lavorgna;Eur. J. Criminol.,2014