EMAN 2020. Conference. 4th International Scientific Conference - EMAN 2020 : Economics and Management: How to Cope With Disrupted Times : Conference Proceedings Draft. 1st Edition. Belgrade : Association of Economists and Managers of the Balkans, 2020. 521 s. Available on Internet: <https://eman-conference.org/wp-content/uploads/2020/09/EMAN_2020-Conference-Proceedings-DRAFT.pdf> ISBN 978-86-80194-30-1. ISSN 2683-4510.