2024-04-102024-04-102021https://otos.stat.fi/handle/123456789/37533enCC BY 4.0communication technologycomputersdata protectiondata securitydomestic applianceselectronic commerceinformation societyinformation technologyinternetmobile phonesonline studyingsocial mediatelephonesUse of information and communications technology by individuals 2021Väestön tieto- ja viestintätekniikan käyttö 2021Befolkningens användning av informations- och kommunikationsteknik 2021URN:NBN:fi-fe20230925137208fulltext