RAXIMOVICH, K. K.; MAMATISAKOVICH, M. M. Formation of Distance Elective Classes in Mathematics for Secondary School Students. Miasto Przyszłości, [S. l.], v. 30, p. 131–132, 2022. Disponível em: https://miastoprzyszlosci.com.pl/index.php/mp/article/view/863. Acesso em: 12 mar. 2025.