WISMATH, Shelly; ORR, Doug; MACKAY, Bruce. Threshold concepts in the development of problem-solving skills. Teaching and Learning Inquiry, [S. l.], v. 3, n. 1, p. 63–73, 2015. DOI: 10.20343/teachlearninqu.3.1.63. Disponível em: https://journalhosting.ucalgary.ca/index.php/TLI/article/view/57404. Acesso em: 14 mar. 2025.