KOZÁKNÉ SZÉKELY, Ildikó. Teaching of problem-solving strategies in mathematics in secondary schools. Teaching Mathematics and Computer Science, [S. l.], v. 7, n. 1, p. 139–164, 2009. DOI: 10.5485/TMCS.2009.0219. Disponível em: https://ojs.lib.unideb.hu/tmcs/article/view/14852. Acesso em: 27 sep. 2024.