SANTOS , Chona. Challenges in Mathematics Instruction Among Grade 2 Teachers in San Agustin District, Isabela. International Journal of Research on Multidisciplinary Studies, [S. l.], v. 1, n. 4, p. 42–52, 2026. DOI: 10.5281/zenodo.20066229. Disponível em: https://ijroms.com/index.php/home/article/view/issue_v1i4a5. Acesso em: 12 sep. 2026.