SALAZAR , Regyn Mae; UY, Sherwin. Strategic Learning Intervention Package in Teaching Quadratic Equations and Inequalities for Grade 9 Mathematics Learners. International Journal of Education, Research, and Innovation Perspectives, Philippines, v. 2, n. 4, p. 829–867, 2026. DOI: 10.5281/zenodo.19677624. Disponível em: https://ijerip.erio.org.ph/index.php/articles/article/view/459. Acesso em: 21 apr. 2026.