WALAT, W. Polish contribution to the theory of textbook – the memory of PhD Antoni Zając – enthusiast use of modern means in education. Journal of Education, Technology and Computer Science, [S. l.], v. 16, n. 2, p. 34–40, 2016. DOI: 10.15584/eti.2016.2.3. Disponível em: https://journals.ur.edu.pl/jetacomps/article/view/6304. Acesso em: 24 aug. 2024.