Hajdú, Dávid. „The Impact of Population Processes on Adult Training in Borsod-Abaúj-Zemplén County Between 2010 and 2019”. Studia Mundi – Economica, köt. 8, sz. 3, 2021. szeptember, o. 131-42, https://doi.org/10.18531/Studia.Mundi.2021.08.03.131-142.