ITEMA 2021 [elektronický zdroj] : Recent Advances in Information Technology, Tourism, Economics, Management and Agriculture / ed. Bevanda Vuk . Belehrad :  Association of Economists and Managers of the Balkans , 2022 . 105 s . ISBN 978-86-80194-50-9
https://doi.org/10.31410/ITEMA.S.P.2021 .