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* [http://www.retrocomputers.eu/2012/06/25/amstrad-cpc464-upgraded-to-a-cpc6128-how-to/ How to convert a Amstrad CPC464 into a CPC6128. | Retro Computers]<BR>* [http://www.eightbitmagazine.com/cpcoxygen/magazine/01/super464/super464.htm Super 464 | CPC Oxygen]<BR>* [http://www.freetimeweb.nl/home/computer/cpc/cpc_464_extended_uk.html THE AMSTRAD / SCHNEIDER CPC EXTENDED]<BR>* [http://www.indieretronews.com/2014/06/amstrad-ddi-1-clone-latest-interface.html Amstrad DDI-1 clone - The latest interface device for the Amstrad CPC 464 on Steve Netting's Amstrad 464]<BR>* [http://www.theregister.co.uk/Print/2014/02/12/archaeologic_amstrad_cpc_464/ You’re NOT fired: The story of Amstrad’s amazing CPC 464 • The Register]<BR>* [http://www.retrogamer.net/profiles/hardware/amstrad-cpc-6128/ Amstrad CPC 6128 | Retro Gamer]<BR>