ITAAS, Estela C. Effects of Peer Tutoring on Students’ Achievement in Statistics. JPAIR Multidisciplinary Research, Philippines, v. 3, n. 1, p. 42–57, 2009. DOI: 10.7719/jpair.v3i1.81. Disponível em: https://philair.org/index.php/jpair/article/view/81. Acesso em: 4 nov. 2025.