AŽUBALIS, Algirdas. The pupil’s individual work skills’ development teaching mathematics at Lithuanian schools (5–9 decades of the 20th century). Lietuvos matematikos rinkinys, [S. l.], v. 43, n. spec., p. 319–323, 2003. DOI: 10.15388/LMR.2003.32433. Disponível em: https://www.journals.vu.lt/LMR/article/view/32433. Acesso em: 28 apr. 2025.