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Lanzanova, Giampietro

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Quello che ti serve davvero di Excel: Guida pratica per principianti e intermedi (Italian Edition)
Excel Without Errors: How to Detect, Understand, and Fix the Most Common Formula Mistakes — Even When Excel Seems to Work
There Was an Italian, a German and a French Guy… Who are you?: International Jokes. Different Reactions. If You Don’t Laugh, There’s a Reason.