PATAN, Romeo A. The Effects of Four Methods of Teaching on Achievement in Basic Mathematics. JPAIR Multidisciplinary Research, Philippines, v. 5, n. 1, p. 44–55, 2010. DOI: 10.7719/jpair.v5i1.123. Disponível em: https://www.philair.ph/index.php/jpair/article/view/123. Acesso em: 2 may. 2025.