DIMITROVA, J. D. Economic benefits of corporate E-learning. Yearbook Telecommunications, [S. l.], v. 6, p. 83–93, 2019. DOI: 10.33919/YTelecomm.19.6.9. Disponível em: https://ojs.nbu.bg/index.php/YT/article/view/344. Acesso em: 12 may. 2025.