PISTOCCHI, F. Languages And Geography In Africa. The Case Of Sierra Leone. Bollettino della Società Geografica Italiana, [S. l.], p. 401–418, 2010. DOI: 10.36253/bsgi-7285. Disponível em: https://bsgi.it/index.php/bsgi/article/view/7285. Acesso em: 15 oct. 2026.