ORDON, U.; SOŁTYSIAK, W. Computer systems in e-learning education. Journal of Education, Technology and Computer Science, [S. l.], v. 10, n. 2, p. 328–333, 2014. DOI: 2080-9069. Disponível em: https://journals.ur.edu.pl/jetacomps/article/view/6613. Acesso em: 24 aug. 2024.