Electronic textbooks and their impact on learning in Ukrainian schools. Periodicals of Engineering and Natural Sciences, [S. l.], v. 13, n. 3, p. 681–694, 2025. DOI: 10.21533/pen.v13.i3.459. Disponível em: https://pen.ius.edu.ba/index.php/pen/article/view/459. Acesso em: 8 oct. 2025.