2C-2I-R Mathematics Teachers’ Guide. Ascendens Asia Singapore – Union Christian College Philippines Journal of Multidisciplinary Research Abstracts, [S. l.], v. 3, n. 1, 2020. Disponível em: https://ojs.aaresearchindex.com/index.php/aasguccphjmra/article/view/2684. Acesso em: 6 dec. 2025.