Lopes, Laryssa Sheydder de Oliveira, José Luís Lopes Araújo, and Marcos Antônio Leite do Nascimento. “Using Values of Tourism Geosites Seven Cities (PI)”. Anuário do Instituto de Geociências 35, no. 1 (June 1, 2012): 209–221. Accessed December 10, 2025. https://revistas.ufrj.br/index.php/aigeo/article/view/6925.