BLAGOEV, I.; MONOV, V.; VASSILEVA, G. Main problems in the development and provision of personalized electronic training content. Yearbook Telecommunications, [S. l.], v. 6, p. 55–61, 2019. DOI: 10.33919/YTelecomm.19.6.6. Disponível em: https://ojs.nbu.bg/index.php/YT/article/view/341. Acesso em: 20 apr. 2024.