Domingos Silva, Flávia Gabriela, and Míriam Aparecida Bueno. “THE CONTRIBUTIONS OF PEIRCEAN SEMIOTICS TO THE SIGN ANALYSIS OF TACTILE CARTOGRAPHY”. Revista Signos Geográficos, vol. 1, Aug. 2019, p. 20, https://teste.revistas.ufg.br/signos/article/view/59403.