SURVILA, Pranas. Combinatorics, statistics, probability calculus in the secondary school in Lithuania. Lietuvos matematikos rinkinys, [S. l.], v. 40, n. spec., p. 247–251 , 2000. DOI: 10.15388/LMR.2000.35136. Disponível em: https://journals.vu.lt./LMR/article/view/35136. Acesso em: 19 apr. 2025.