ITEMA 2021. International Scientific Conference. ITEMA 2021: Recent Advances in Information Technology, Tourism, Economics, Management and Agriculture : Proceedings of Fifth International Scientific Conference. 1st Edition. Belgrade : Association of Economists and Managers of the Balkans, 2021. 213 s. Available on Internet: <https://www.itema-conference.com/wp-content/uploads/2022/05/ITEMA_2021-Proceedings-DRAFT.pdf> ISBN 978-86-80194-51-6. ISSN 2683-5991.