BOYANOV, P. Content of vol. 12, 2017, Journal Scientific and Applied Research: Content of vol. 12, 2017, Journal Scientific and Applied Research. JOURNAL SCIENTIFIC AND APPLIED RESEARCH, [S. l.], v. 12, n. 1, 2023. DOI: 10.46687/jsar.v12i1.219. Disponível em: https://jsar.ftn.shu.bg/index.php/jsar/article/view/219. Acesso em: 7 nov. 2024.