KRYLOVAS, Aleksandras; KASTICKAITĖ, Joana. Experience of test tasks severity analysis: some school mathematics problems severity. Lietuvos matematikos rinkinys, [S. l.], v. 54, n. B, p. 123–128, 2013. DOI: 10.15388/LMR.B.2013.23. Disponível em: https://www.journals.vu.lt/LMR/article/view/17165.. Acesso em: 28 apr. 2024.