*[http://www.cpcwiki.eu/manuals/Amstrad%20CPC%20464+%20and%20%206128+.es.rar Amstrad CPC 464+ & 6128+ Manual]
*[http://www.cpcwiki.eu/manuals/DDI-1.es.rar Amstrad DDI-1 Manual]
*[[Media:GX4000 User Instructions.pdf|GX4000 User Instructions]] (multi-language)
== Links ==