KREJCIE, V. Maps and Politics. Cartographic Perspectives, [S. l.], n. 31, p. 44–46, 1998. DOI: 10.14714/CP31.652. Disponível em: https://cartographicperspectives.org/index.php/journal/article/view/cp31-krejcie. Acesso em: 2 oct. 2024.