STADTRUCKER, R.; ĎURIŠ, M. Zvyšovanie kvality vyučovacieho procesu pomocou interaktívnych elektronických úloh. Journal of Education, Technology and Computer Science, [S. l.], v. 10, n. 2, p. 127–133, 2014. Disponível em: https://journals.ur.edu.pl/jetacomps/article/view/6583. Acesso em: 21 lis. 2024.