E-studies and mastering of educational material for people with visual perception and visual – motor integration problems - topical issues and perspectives. Periodicals of Engineering and Natural Sciences, [S. l.], v. 7, n. 1, 2019. DOI: 10.21533/pen.v7.i1.1486. Disponível em: https://pen.ius.edu.ba/index.php/pen/article/view/1486. Acesso em: 2 aug. 2026.