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A complete IGCSE computer studies / Martin Amor y John Fairhurst
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.Burt, Angela
. , 1985. U.I.: Quilmes College. ISBN: 9780748712342. (M) Libro impreso
GCSE Computer Studies for you / Stephen Doyle
.Doyle, Stephen
. , 1993. U.I.: Quilmes College. ISBN: 9780748703814. (M) Libro impreso
