2024-04-102024-04-102019https://otos.stat.fi/handle/123456789/28332enCC BY 4.0adult educationeducationeducational institutionsstudentsAdult education of educational institutions 2018Oppilaitosten aikuiskoulutus 2018Vuxenutbildning vid läroanstalter 2018URN:NBN:fi-fe20230917129228fulltext