VILOG, J. . M. . B.; LASTIERRE, R. A.; SERVINAS, L. P. Grade 7 Learners’ Difficulties with Integers. Busilak, [S. l.], v. 1, 2023. Disponível em: https://stiwnu-journals.com/index.php/Busilak/article/view/17. Acesso em: 17 jun. 2026.