WALAT, W. Review. Journal of Education, Technology and Computer Science, [S. l.], v. 22, n. 4, p. 385–386, 2017. DOI: 10.15584/eti.2017.4.52. Disponível em: https://journals.ur.edu.pl/jetacomps/article/view/6038. Acesso em: 22 jul. 2024.