SIČIŪNIENĖ, Viktorija; DARGYTĖ, Janina. Learning geometry in pro-gymnasium: achievements and challenges. Lietuvos matematikos rinkinys, [S. l.], v. 53, n. B, p. 231–236, 2012. DOI: 10.15388/LMR.B.2012.42. Disponível em: https://test.zurnalai.vu.lt/LMR/article/view/17133. Acesso em: 27 oct. 2025.