VIRUIŠIS, Vaclovas. On purposefulners of the mathematics course presented at the education faculty. Lietuvos matematikos rinkinys, [S. l.], v. 39, n. III, p. 299–301 , 1999. DOI: 10.15388/LMD.1999.35638. Disponível em: https://www.journals.vu.lt/LMR/article/view/35638.. Acesso em: 11 sep. 2024.