ERAZ 2021. International Scientific Conference. International Scientific Conference ERAZ - Knowledge Based Sustainable Development : Selected Papers. Editor: Vuk Bevanda. 1st Edition. Belgrade : Association of Economists and Managers of the Balkans, 2021. 154 s. Available on Internet: <https://eraz-conference.com/wp-content/uploads/2022/03/ERAZ_2021-Selected-WEB.pdf> ISBN 978-86-80194-47-9. ISSN 2683-5568.