Analysis of student learning difficulties of first high school series from a state school. Research, Society and Development, [S. l.], v. 9, n. 2, p. e64921820, 2020. DOI: 10.33448/rsd-v9i2.1820. Disponível em: https://ojs34.rsdjournal.org/index.php/rsd/article/view/1820. Acesso em: 28 jun. 2025.