Bibliometric analysis of the textual lyric: The case of Martina Portocarrero live at the Municipal Theater. Letras, Lima, Peru, v. 83, n. 118, p. 153–180, 2012. DOI: 10.30920/letras.83.118.p153. Disponível em: https://revistaletras.unmsm.edu.pe/index.php/le/article/view/1917. Acesso em: 13 sep. 2026.