BALČIŪNAS, Sigitas. Student’s ability to the argumentation as the basic condition to develop proof conception. Lietuvos matematikos rinkinys, [S. l.], v. 41, n. spec., p. 343–350, 2001. DOI: 10.15388/LMR.2001.34569. Disponível em: https://www.journals.vu.lt/LMR/article/view/34569.. Acesso em: 27 sep. 2024.