CERRETI, C. Africa And The Italian Geographical Society. Bollettino della Società Geografica Italiana, [S. l.], p. 423–431, 2003. DOI: 10.36253/bsgi-6942. Disponível em: https://www.bsgi.it/index.php/bsgi/article/view/6942. Acesso em: 16 oct. 2026.