KRUPA, T. V. . Stages of Learning and Progression in Mathematics. The journal of contemporary issues in business and government, [S. l.], v. 27, n. 2, p. 5053–5059, 2021. Disponível em: https://textitlejournal.com/cibgp.com/index.php/1323-6903/article/view/1412. Acesso em: 11 sep. 2025.