The indigenous Peruvian contribution to the formation of the Spanish language. Letras, Lima, Peru, v. 3, n. 6, p. 38–50, 1937. DOI: 10.30920/letras.3.6.2. Disponível em: https://revistaletras.unmsm.edu.pe/index.php/le/article/view/1151. Acesso em: 13 sep. 2026.