BILLEWICZ, Michał; BOGUSZ, Natalia; SKUBLEWSKA-PASZKOWSKA, Maria. Analysis of usability and accessibility of Polish web services for English language testing. Journal of Computer Sciences Institute, [S. l.], v. 39, p. 146–153, 2026. DOI: 10.35784/jcsi.9238. Disponível em: https://ph.pollub.pl/index.php/jcsi/article/view/9238. Acesso em: 15 jul. 2026.