BERRY, J.; SAHLBERG, P. Accountability affects the use of small group learning in school mathematics. NOMAD Nordic Studies in Mathematics Education, [S. l.], v. 11, n. 1, p. 5–31, 2006. DOI: 10.7146/nomad.v11i1.147176. Disponível em: https://tidsskrift.dk/NOMAD/article/view/147176. Acesso em: 9 jan. 2025.