Tiddukla tasnallunant tagraɣlant

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Tiddukla tasnallunant tagreɣlant (IAU) d tuddsa yeddukklen timettiwin tisnallunin deg umaḍal, akken yella daɣen d amaslaḍ deg Useqqamu Agreɣlan n Tussniwin (ICSU).

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