1. Adegoke, Y., Reuters, Global Music Sales Keep Falling, Pretty Much Everywhere, 〈http://blogs.reuters.com/mediafile/2009/04/22/global-music-sales-keep-falling-pretty-much-everywhere/〉, 2009, (online; accessed 16.01.15).
2. A practical buyer-seller watermarking protocol based on discrete wavelet transform;Ashwani Kumar;Int. J. Comput. Appl.,2011
3. B2C E-commerce Sales Worldwide 2018, 〈http://www.statista.com/statistics/261245/b2c-e-commerce-sales-worldwide/〉.
4. TTP-free asymmetric fingerprinting based on client side embedding;Bianchi;Inf. Forensics Secur., IEEE Trans.,2014
5. Bok-Min, Goi, Phan, R., Yang, Y., Bao, F., Deng, R.H., Siddiqi, M.U., 2004. Cryptanalysis of two anonymous buyer-seller watermarking protocols and an improvement for true anonymity, in Proceedings of ACNS 04, LNCS 3089, pp. 369–382.