RUIZ ALBA, Enrique. Application of second language acquisition theory in Rock Art. Boletín APAR, [S. l.], v. 3, n. 11, p. pp. 413–415, 2012. DOI: 10.70748/ba.11.2012.213. Disponível em: https://revistas.coarpe.org.pe/index.php/BoletinApar/article/view/213. Acesso em: 27 jul. 2026.